2021 Pacific typhoon season#Tropical Depression Nando

During the year, several national meteorological services and scientific agencies forecast how many tropical cyclones, tropical storms, and typhoons will form during a season and/or how many tropical cyclones will affect a particular country. These agencies included the Tropical Storm Risk (TSR) Consortium of University College London, PAGASA and Taiwan's Central Weather Bureau. The first forecast was released by PAGASA on December 27, 2020, in their monthly seasonal climate outlook predicting the first half of 2021. The PAGASA predicts that only 0–3 tropical cyclones are expected to form or enter the Philippine Area of Responsibility between January and March, while 1–4 tropical cyclones are expected to form between April and June. PAGASA also predicted that the ongoing La Niña could persist until the end of the first quarter of 2021. Tropical Storm Risk (TSR) issued their first extended range forecast on May 11, predicting a slightly below-average season with 24 tropical storms, 15 typhoons and 9 intense typhoons.

On June 23, the PAGASA released their monthly climate outlook for the rest of 2021, predicting 5 to 9 tropical cyclones developing or entering their area of responsibility from July to September, and 5 to 8 tropical cyclones from October to December. TSR issued an update to their forecast on July 7, reiterating their expectations for slightly below-average activity. On August 9, TSR issued their final forecast for the season, slightly lowering their numbers to 25 named storms, 13 typhoons and 7 intense typhoons.

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File:Cempaka and In-fa - Jul 20, 2021.jpg (left), In-fa (center-right), and a tropical disturbance that would eventually become Nepartak (far-right)]]

The season began in January with a weak and short-lived tropical depression that brought damages to the Philippines. In mid-February, another tropical depression formed, before being assigned the local name Auring by the PAGASA. The system then strengthened into a tropical storm, being given the name Dujuan by the JMA, making it the first named storm of the year. Another tropical depression formed in March, though it was short-lived, dissipating shortly after forming. On April 12, a tropical depression formed to the south of Woleai. It strengthened into a tropical storm, being given the name Surigae by the JMA. On April 15, it was further upgraded into a severe tropical storm, before being upgraded to a typhoon on the next day, and to a super typhoon on April 17,{{refn|A super typhoon is an unofficial category used by the Joint Typhoon Warning Center (JTWC) for a typhoon with winds of at least 240 km/h (150 mph).{{cite report|date=August 13, 2012|title=Frequently Asked Questions|publisher=Joint Typhoon Warning Center|access-date=September 22, 2012|url=http://www.usno.navy.mil/JTWC/frequently-asked-questions-1/frequently-asked-questions|archive-url=https://web.archive.org/web/20131004091412/http://www.usno.navy.mil/JTWC/frequently-asked-questions-1/frequently-asked-questions/|archive-date=October 4, 2013|url-status=dead}}|group="nb"|name="STY"}} making it the first of the season and the strongest recorded cyclone to form in the month of April in the Northern Hemisphere, however, it did not hit any landmasses. Then, in mid-May a new tropical depression was named Crising by the PAGASA and made landfall on Baganga, Davao Oriental as a weak tropical storm, bringing minimal damages due to its small size. Two tropical depressions formed on May 29 and 30 respectively, with the first being assigned the local name Dante by the PAGASA. Dante intensified into a tropical storm, being assigned the name Choi-wan, before moving over the Philippines and making landfall eight times, bringing widespread damages to the country. A tropical depression formed behind Choi-wan on May 30; it didn't develop further.

The second typhoon of the season, Champi, briefly threatened the Ogasawara Islands before recurving through the main Japanese islands. Another depression formed at the end of June; it stayed from any landmasses while two tropical depressions formed in early July with both of them affecting land. One of them was named Emong by PAGASA. In mid-July, In-fa formed and became the third typhoon of the season. The storm contributed to rainfall and flooding in eastern China as it made landfall near Shanghai. Meanwhile, Cempaka formed and intensified into a typhoon affecting southern China and northern Vietnam. Another tropical storm, Nepartak, formed as Cempaka made landfall. Nepartak affected Japan in late July, disrupting the 2020 Summer Olympics, before becoming extratropical in the sea of Japan.

By the end of July, activity abruptly increased as eight tropical depressions formed within a week. Half of them were short-lived and dissipated without becoming tropical storms. Another depression and the remaining three were named Lupit, Nida, and Mirinae. Lupit and Mirinae both threatened Japan while Nida stayed out to sea. A system from the Central Pacific traveled a long distance and became Tropical Storm Omais over the Philippine Sea.

File:Lupit, Mirinae and Nida 2021-08-06.jpg (left), Mirinae (center), and Nida (right)]]

After Omais, the tropics stayed quiet for the rest of August until early September, when Conson rapidly intensified to become a typhoon in less than 24 hours before hitting the Philippines and Chanthu becoming the second Category 5-equivalent super typhoon of the season. After Chanthu dissipated, there was a pause in activity until Typhoon Mindulle and Tropical storm Dianmu formed. Dianmu soon made landfall on Vietnam and dissipated, but Mindulle went on to become the third Category 5-equivalent super typhoon of the season.

Soon thereafter in the month of October, four storm named Lionrock, Kompasu, Namtheun, and Malou formed. Lionrock made landfall over Vietnam, causing agricultural damage. Kompasu made landfall in the Philippines and later China, causing severe flooding, infrastructure, and agricultural damage. Tropical Depression Nando also formed in early October but was absorbed by Kompasu. Namtheun initially peaked as a minimal tropical storm while being highly sheared, but unexpectedly conditions became briefly more favorable and peaked as a minimal typhoon. The system transitioned into an extratropical low before explosively intensifying into a bomb cyclone and impacting the Pacific Northwest. In late October, Malou peaked as a Category 2-equivalent typhoon, and only impacted the Bonin Islands. In the South China Sea, tropical depression 26W formed before making landfall in southern Vietnam and causing torrential flooding.

After an unusual four-week break of inactivity, Nyatoh formed on November 29 and later strengthened to a typhoon on December 1. It later turned towards the northeast, became a super typhoon then transitioned into an extratropical cyclone. After Nyatoh, in the early week of December, a disturbance formed east of the Philippines and moved eastward, while dumping rains on parts of Visayas and Mindanao. After that, it merged with another invest (designated 96W by the Joint Typhoon Warning Center) and headed towards the west-northwest. It later strengthened to a tropical depression by December 12, with the JTWC later designating it as 28W. 9 hours later, 28W intensified to Tropical Storm Rai, meaning Yapese stone money. Rai continued intensifying as it headed west and passed south of Ngulu State, and intensified into a severe tropical storm by 14 December. It got battered by wind shear as it neared the small island country of Palau, and by evening, entered the Philippine Area of Responsibility and was given the local name of Odette. Four hours later, Rai (Odette) began showing an eye feature first seen in microwave imaging, with Rai later becoming a Category 1-equivalent typhoon. Steady intensification ensued, and Rai later reached Category 2-equivalent status.

File:Aerial Photo of Surigao City (Coast Guard2).jpg in the Philippines on December 17, 2021]]

By the evening of December 15, Typhoon Rai underwent unexpected rapid intensification, doubling its wind speeds from a 120 km/h (75 mph) to 260 km/h (160 mph)—Category 5-equivalent winds—by December 16, effectively making it a super typhoon. Rai then began an eyewall replacement cycle shortly after reaching its first peak intensity, weakening below Category 5-equivalent status. It made landfall in General Luna, Surigao del Norte as a 155 mph Category 4-equivalent storm. It made 8 more landfalls, weakening to a Category 2-equivalent typhoon by the time it entered the Sulu Sea. Rai then began to re-intensify, making its 10th landfall in Roxas, Palawan. After this, Rai continued re-intensification, becoming a Category 5-equivalent typhoon once again in the South China Sea, the first in the month of December and the third to do so after Typhoon Pamela (1954) and Typhoon Rammasun. After this, Rai began weakening, eventually dissipating west of the Batanes in December 21. A tropical depression, designated 29W by JTWC, formed in December 14 and affected Malaysia with widespread flooding, and struck around the same time as Rai was pounding through the Visayas. 29W dissipated by December 17, as Rai entered the Sulu Sea.

Rai contributed to the change of PAGASA's Tropical Cyclone Wind Signals and TC classification, which itself was deemed as a super typhoon by the agency when the change was made on March 23, 2022.{{Cite web |date=2022-03-23 |title=PAGASA changes super typhoon definition, wind signals |url=https://www.rappler.com/nation/weather/pagasa-changes-super-typhoon-definition-tropical-cyclone-wind-signals-march-2022/ |access-date=2022-06-10 |website=RAPPLER |language=en-US}}

{{Infobox hurricane small

|Basin=WPac

|Formed=February 16

|Dissipated=February 23

|Image=Dujuan 2021-02-19 0435Z.jpg

|Track=Dujuan 2021 track.png

|10-min winds=40

|1-min winds=45

|Pressure=996

}}

{{main|Tropical Storm Dujuan (2021)}}

At 06:00 UTC on February 16, the JMA reported that a tropical depression had formed.{{Cite web |date=May 20, 2021 |title=RSMC Tropical Cyclone Best Track Name 2101 Dujuan (2101) |url=https://tgftp.nws.noaa.gov/data/raw/ax/axpq20.rjtd..txt |archive-url=https://archive.today/20210528073248/https://tgftp.nws.noaa.gov/data/raw/ax/axpq20.rjtd..txt |archive-date=May 28, 2021 |access-date=March 27, 2022 |website=Japan Meteorological Agency |via=the National Oceanic and Atmospheric Administration}} Eight hours later, the JTWC issued a Tropical Cyclone Formation Alert (TCFA) for the system.{{Cite web|url=https://www.metoc.navy.mil/jtwc/products/wp9121web.txt|title=Tropical Cyclone Formation Alert (Invest 91W)|website=Joint Typhoon Warning Center|date=February 16, 2021|access-date=February 16, 2021|archive-url=https://archive.today/20210216212851/https://www.metoc.navy.mil/jtwc/products/wp9121web.txt|archive-date=February 16, 2021|url-status=dead}} By February 17, the system moved into the Philippine Area of Responsibility (PAR), and was assigned the local name Auring from the PAGASA.{{Cite PAGASA|date=February 17, 2021|name=Auring|type=swb|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf|url-status=live|archive-date=2021-04-22|archive-url=https://web.archive.org/web/20210422083915/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf}} [https://archive.org/download/pagasa-21-TC01/PAGASA_21-TC01_Auring_SWB%2301.pdf Alt URL] At 06:00 UTC on the same day, the JTWC upgraded the system to a tropical depression, giving it the designation 01W. The system was later named Dujuan as the first named storm of 2021. The PAGASA later upgraded Dujuan to a severe tropical storm; however, this only lasted for six hours.{{Cite PAGASA|date=February 19, 2021|name=Auring|intl_name=Dujuan|type=swb|no=6|category=STS|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%236_auring.pdf}}{{dead link|date=August 2023|bot=medic}}{{cbignore|bot=medic}} [https://archive.org/download/pagasa-21-TC01/PAGASA_21-TC01_Auring_SWB%2306.pdf Alt URL]{{Cite PAGASA|date=February 19, 2021|name=Auring|intl_name=Dujuan|type=swb|no=7|category=TS|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf|url-status=live|archive-date=2021-04-22|archive-url=https://web.archive.org/web/20210422083915/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_auring.pdf}} [https://archive.org/download/pagasa-21-TC01/PAGASA_21-TC01_Auring_SWB%2307.pdf Alt URL] On February 20, the storm significantly weakened into a tropical depression due to high vertical wind shear. Both JMA and JTWC issued their final advisories moments after.{{Cite JTWC|date=February 22, 2021|type=warn|category=TD|designation=01W|no=20|name=Dujuan|url=https://www.metoc.navy.mil/jtwc/products/wp0121warn.txt}}{{dead link|date=April 2025|bot=medic}}{{cbignore|bot=medic}} [https://wiki.chlod.net/jtwc/text/2021-02-22-0240-wp0121web.txt Alt URL] The storm made landfall over Batag Island in Laoang, Northern Samar at 09:00 PHT (01:00 UTC) on February 22,{{Cite PAGASA|date=February 21, 2021|name=Auring|intl_name=Dujuan|type=swb|no=23|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%2323_auring.pdf}}{{dead link|date=August 2023|bot=medic}}{{cbignore|bot=medic}} [https://archive.org/download/pagasa-21-TC01/PAGASA_21-TC01_Auring_SWB%2323.pdf Alt URL] dissipating thereafter.

Dujuan briefly moved over Palau on February 16 as a tropical depression, bringing heavy rainfall to parts of the country.{{Cite web|url=https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ&product=RWR&format=CI&version=30&glossary=0|title=WEATHER ROUNDUP FOR THE MARIANAS AND MICRONESIA|website=National Weather Service Tiyan GU|date=February 16, 2021|access-date=February 16, 2021|archive-url=https://archive.today/20210216212124/https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ&product=RWR&format=CI&version=30&glossary=0|archive-date=February 16, 2021|url-status=live}}{{Cite web|url=https://www.metoc.navy.mil/jtwc/products/wp9121.gif|title=Tropical Cyclone Formation Alert Graphic|website=Joint Typhoon Warning Center|date=February 16, 2021|access-date=February 16, 2021|archive-url=https://archive.today/20210216212610/https://www.metoc.navy.mil/jtwc/products/wp9121.gif|archive-date=February 16, 2021|url-status=dead}} Classes and government work were suspended on February 22 in parts of Eastern Visayas and Central Visayas, including Surigao del Sur.{{Cite web|title=Walang Pasok: Class, work suspensions on February 22 due to 'Auring'|url=https://www.philstar.com/headlines/2021/02/22/2079584/walang-pasok-class-work-suspensions-february-22-due-auring|access-date=February 22, 2021|website=Philstar.com}}{{Cite web|date=February 22, 2021|title=Sitrep No. 04 re Preparedness Measures and Effects of Severe Tropical Storm "AURING"|url=https://ndrrmc.gov.ph/attachments/article/4144/SitRep_No_04_TC_AURING_2021_Update.pdf|url-status=dead|archive-url=https://web.archive.org/web/20210223011006/https://ndrrmc.gov.ph/attachments/article/4144/SitRep_No_04_TC_AURING_2021_Update.pdf|archive-date=February 23, 2021|access-date=February 23, 2021|website=National Disaster Risk Reduction and Management Council}} A total of 242,194 individuals were affected in Northern Mindanao, Caraga, and in the Davao Region. At least 77,811 of the affected individuals were taken to 344 various evacuation shelters in each region. One person was reported dead with four others reported missing, with total damages to agriculture and infrastructure amounting to ₱159.8 million (US$3.29 million).{{Cite web|title=SitRep no.13 re Preparedness Measures and Effects for STS Auring|url=https://ndrrmc.gov.ph/attachments/article/4144/SitRep_No_13_TC_Auring_2021_Update.pdf|access-date=March 5, 2021|website=NDRRMC}}

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{{Infobox hurricane small

|Basin=WPac

|Formed=April 12

|Dissipated=April 24

|Image=Surigae 2021-04-17 0800Z.jpg

|Track=Surigae 2021 path.png

|10-min winds=120

|1-min winds=170

|Pressure=895

}}

{{main|Typhoon Surigae}}

A low-pressure area south of Woleai developed into a tropical depression on April 12.{{cite web |title=WWJP27 RJTD 120000 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=April 12, 2021 |archive-url=https://archive.today/20210412084158/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210412/000000/A_WWJP27RJTD120000_C_RJTD_20210412023019_62.txt |archive-date=April 12, 2021 |date=April 12, 2021}}{{cite web |title=WWJP27 RJTD 120600 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=April 12, 2021 |archive-url=https://archive.today/20210412084148/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |archive-date=April 12, 2021 |date=April 12, 2021}} A few hours later, the JTWC issued a TCFA for the developing storm, with the PAGASA beginning to issue advisories for the tropical depression as it remained outside of the PAR.{{Cite JTWC|date=April 12, 2021|type=tcfa|designation=94W|url=https://www.metoc.navy.mil/jtwc/products/wp9421web.txt|url-status=dead|archive-date=2021-04-12|archive-url=https://web.archive.org/web/20210412125054/https://www.metoc.navy.mil/jtwc/products/wp9421web.txt}} [https://wiki.chlod.net/jtwc/text/2021-04-12-1240-abpwweb.txt Alt URL]{{Cite web|date=April 12, 2021|title=Tropical Cyclone Advisory #1 for: Tropical Depression|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/tca/TCA%231.pdf|url-status=live|archive-url=https://archive.today/20210413094617/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/tca/TCA%25231.pdf|archive-date=April 13, 2021|access-date=April 13, 2021|website=pubfiles.pagasa.dost.gov.ph}} On April 13, the JTWC upgraded the system to a tropical depression and assigned it the designation 02W.{{Cite JTWC|date=April 13, 2021|type=warn|category=TD|designation=02W|no=1|name=Two|url=https://www.metoc.navy.mil/jtwc/products/wp0221web.txt|url-status=live|archive-date=2021-04-13|archive-url=https://web.archive.org/web/20210413135312/https://www.metoc.navy.mil/jtwc/products/wp0221web.txt}} [https://wiki.chlod.net/jtwc/text/2021-04-13-1350-wp0221web.txt Alt URL] At 18:00 UTC, the JMA upgraded the cyclone to a tropical storm and named it Surigae.{{Cite web|date=April 13, 2021|title=Tropical Cyclone Information|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|url-status=dead|archive-url=https://archive.today/20210413191807/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|archive-date=April 13, 2021|access-date=April 13, 2021|website=Japan Meteorological Agency}} On April 15 at 00:00 UTC, the JMA upgraded Surigae to a severe tropical storm as an eye began forming.{{Cite web|date=April 15, 2021|title=Tropical Cyclone Information|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|url-status=live|archive-url=https://archive.today/20210415011644/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|archive-date=April 15, 2021|access-date=April 15, 2021|website=data.jma.go.jp}} Later that day, the JTWC upgraded the storm to a typhoon, making it the first of the season. Surigae then entered the PAGASA's Philippine Area of Responsibility, getting the local name Bising. Surigae continued to rapidly intensify until it reached Category 5-equivalent super typhoon status, becoming the most intense typhoon ever recorded in the month of April.{{Cite web|date=April 16, 2021|title=Typhoon 02W (Surigae) Warning NR 013|url=https://www.metoc.navy.mil/jtwc/products/wp0221web.txt|access-date=April 16, 2021|website=Join Typhoon Warning Center}}{{cite web |last1=Masters |first1=Jeff |title=Category 5 Super Typhoon Surigae brushes Philippines |url=https://yaleclimateconnections.org/2021/04/category-5-super-typhoon-surigae-brushes-philippines/ |website=Eye on the Storm |publisher=Yale Climate Connections |access-date=April 18, 2021 |date=April 17, 2021}}{{cite web |title=Surigae Stirs Up the Pacific |url=https://www.earthobservatory.nasa.gov/images/148208/surigae-stirs-up-the-pacific |website=Earth Observatory |publisher=NASA |access-date=April 22, 2021 |date=April 19, 2021}} Surigae soon reached its peak intensity, with a minimum central pressure of {{convert|895|mbar|inHg|sigfig=4}}, 10-minute maximum sustained winds of 220 km/h (140 mph), and 1-minute sustained winds of 315 km/h (195 mph).{{cite news |last1=Cappucci |first1=Matthew |last2=Samenow |first2=Jason |title=Super Typhoon Surigae to pass near Philippines at Category 5 strength Sunday |url=https://www.washingtonpost.com/weather/2021/04/16/typhoon-surigae-philippines/ |access-date=April 17, 2021 |newspaper=The Washington Post |date=April 17, 2021 |location=Washington, D.C.}}{{cite report|title=Reasoning No. 20 for TY 2102 Surigae|type=RSMC Tropical Cyclone Prognostic Reasoning|publisher=Japan Meteorological Agency |date=April 17, 2021|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210417/180000/A_WTPQ30RJTD171800_C_RJTD_20210417194544_4.txt|archive-url=https://web.archive.org/web/20210418165826/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210417/180000/A_WTPQ30RJTD171800_C_RJTD_20210417194544_4.txt|url-status=dead|archive-date=April 18, 2021}} A few days later, on April 22, Surigae began to weaken again, with the storm's structure deteriorating and its large eye dissipating.{{cite report|title=Prognostic Reasoning for Typhoon 02W (Surigae) Warning NR 037|publisher=Joint Typhoon Warning Center |location=Pearl Harbor, Hawaii |date=April 22, 2021}} Soon afterward, all of the remaining convection was sheared to the east as the storm moved over cooler waters.{{Cite web|title=Prognostic Reasoning for Tropical Storm 02W (Surigae) Warning NR 041|url=https://www.metoc.navy.mil/jtwc/products/wp0221prog.txt|archive-url=https://archive.today/20210423184610/https://www.metoc.navy.mil/jtwc/products/wp0221prog.txt|archive-date=April 23, 2021|url-status=dead|author=|publisher=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii|date=April 23, 2021|access-date=April 23, 2021}} Late on April 24, JTWC and JMA declared and issued their final advisory that Surigae had become extratropical.{{cite web |title=WTPQ50 RJTD 250000 |url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt |publisher=Japan Meteorological Agency |access-date=April 27, 2021 |archive-url=https://archive.today/20210425062043/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210425/000000/A_WTPQ50RJTD250000_C_RJTD_20210425004517_39.txt |archive-date=April 25, 2021 |date=April 25, 2021}}

Winds of up to 30 mph (50 km/h) were recorded in Yap on that day as Surigae passed from the southwest.{{Cite news|last=Cappucci|first=Matthew|title=Tropical Storm Surigae to intensify into powerful Pacific typhoon, brush past Philippines|language=en-US|newspaper=Washington Post|url=https://www.washingtonpost.com/weather/2021/04/14/typhoon-philippines-pacific-surigae/|access-date=April 14, 2021}} Damage in Palau was estimated at US$4.8 million.{{Cite web|date=April 26, 2021|title=Republic of Palau: Typhoon Surigae - Emergency Plan of Action (EPoA), DREF Operation n° 1 MDRPW001|url=https://reliefweb.int/sites/reliefweb.int/files/resources/MDRPW001do.pdf|access-date=April 27, 2021|website=ReliefWeb|publisher=International Federation of Red Cross and Red Crescent Societies (IFRC/ICRC)}} Very strong winds and heavy rains affected the eastern part of the Philippines, with storm surge inundating parts of coastline nearest to the typhoon. Surigae killed a total of 8 people and left another 10 missing.{{cite web|url=https://ca.news.yahoo.com/four-crew-dead-9-missing-075152482.html|title=Four crew dead, 9 missing after cargo ship runs aground in Philippines|author=Karen Lema|publisher=Yahoo! News|date=April 21, 2021|access-date=April 21, 2021}} The storm also caused at least ₱272.55 million (US$5.65 million) in damages.{{cite web|title=SitRep no. 10 re Preparedness Measures and Effects for Typhoon Bising|url=https://ndrrmc.gov.ph/attachments/article/4150/SitRep_No_10_TC_Bising_2021_Update_.pdf|website=ndrrmc.gov.ph|date=April 25, 2021|access-date=April 25, 2021|language=en-US}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=May 12

|Dissipated=May 14

|Image=03W 2021-05-13 0517Z.jpg

|Track=Crising 2021 track.png

|10-min winds=30

|1-min winds=35

|Pressure=1002

}}

On May 11, the JTWC noted a persistent area of convection in the Philippine Sea, approximately {{convert|184|nmi|km|abbr=on}} west of Palau.{{Cite report|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans (Reissued)|date=May 11, 2021|publisher=United States Joint Typhoon Warning Center|archive-url=https://web.archive.org/web/20210425144930/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=April 25, 2021}} [https://wiki.chlod.net/jtwc/text/2021-05-11-2210-abpwweb.txt Alt URL] The JTWC issued a TCFA for the convection on May 12, as it further developed in an environment with low vertical wind shear and warm sea surface temperatures.{{Source-attribution|sentence=yes|{{Cite JTWC|date=May 13, 2021|type=tcfa|designation=96W|url=https://www.metoc.navy.mil/jtwc/products/wp9621web.txt|url-status=dead|archive-date=2021-07-04|archive-url=https://web.archive.org/web/20210704100716/https://www.metoc.navy.mil/jtwc/products/wp9621web.txt}} [https://wiki.chlod.net/jtwc/text/2021-05-12-1640-wp9621web.txt Alt URL] }} Just three hours later, the agency recognized that the area of convection had quickly consolidated into a tropical depression and assigned it with the identifier of 03W.{{Cite JTWC|date=May 12, 2021|type=prog|category=TD|designation=03W|no=1|name=Three|url=https://www.metoc.navy.mil/jtwc/products/wp0321prog.txt|url-status=dead|archive-date=2021-05-12|archive-url=https://web.archive.org/web/20210512210955/https://www.metoc.navy.mil/jtwc/products/wp0321prog.txt}} [https://wiki.chlod.net/jtwc/prog/2021-05-12-2020-wp0321prog.txt Alt URL] Around the same time, the JMA had also recognized the storm as a tropical depression while it was to the east of Mindanao.{{Cite report|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210512/180000/A_WWJP90RJTD121800_C_RJTD_20210512201818_89.txt|title=WWJP90 RJTD 121800|date=May 12, 2021|publisher=Japan Meteorological Agency|access-date=May 12, 2021|archive-url=https://archive.today/20210512210547/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210512/180000/A_WWJP90RJTD121800_C_RJTD_20210512201818_89.txt|archive-date=May 12, 2021}} Since the storm developed within the Philippine Area of Responsibility, the PAGASA immediately named the storm Crising once the agency recognized it as a tropical depression as well, and later raised Signal No. 2 warnings for areas in Mindanao.{{Cite PAGASA|date=May 12, 2021|name=Crising|type=swb|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_crising.pdf|url-status=live|archive-date=2021-05-12|archive-url=https://web.archive.org/web/20210512215906/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_crising.pdf}} [https://archive.org/download/pagasa-21-TC03/PAGASA_21-TC03_Crising_SWB%2301.pdf Alt URL]{{Cite PAGASA|date=May 12, 2021|name=Crising|type=swb|no=5|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_crising.pdf|url-status=live|archive-date=2021-05-12|archive-url=https://web.archive.org/web/20210512215906/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_crising.pdf}} [https://archive.org/download/pagasa-21-TC03/PAGASA_21-TC03_Crising_SWB%2305.pdf Alt URL] In the early hours of May 13, the JTWC upgraded the system into a tropical storm, with the PAGASA following suit hours later.{{Cite JTWC|date=May 13, 2021|type=prog|category=TS|designation=03W|no=2|name=Three|url=https://www.metoc.navy.mil/jtwc/products/wp0321prog.txt|url-status=dead|archive-date=2021-05-12|archive-url=https://web.archive.org/web/20210512210955/https://www.metoc.navy.mil/jtwc/products/wp0321prog.txt}} [https://wiki.chlod.net/jtwc/prog/2021-05-13-0300-wp0321prog.txt Alt URL]{{Cite PAGASA|date=May 13, 2021|name=Crising|type=swb|no=3|category=TS|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_crising.pdf|url-status=live|archive-date=2021-05-12|archive-url=https://web.archive.org/web/20210512215906/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_crising.pdf}} [https://archive.org/download/pagasa-21-TC03/PAGASA_21-TC03_Crising_SWB%2303.pdf Alt URL] Later that day, Crising's low-level circulation center became exposed due to wind shear, and it lost organization. At 8:20 p.m. Philippine Standard Time (12:20 UTC), Crising made landfall in Baganga, Davao Oriental as a weakening tropical storm. It quickly degraded as soon as it made landfall, with both the JTWC and the PAGASA downgrading it to a tropical depression at 15:00 UTC.{{Cite JTWC|date=May 13, 2021|type=prog|category=TD|designation=03W|no=4|name=Three|url=https://www.metoc.navy.mil/jtwc/products/wp0321prog.txt|url-status=dead|archive-date=May 13, 2021|archive-url=https://web.archive.org/web/20210513155121/https://www.metoc.navy.mil/jtwc/products/wp0321prog.txt}}{{Cite PAGASA|date=May 13, 2021|name=Crising|type=swb|no=7|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_crising.pdf|url-status=live|archive-date=2021-05-12|archive-url=https://web.archive.org/web/20210512215906/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_crising.pdf}} [https://archive.org/download/pagasa-21-TC03/PAGASA_21-TC03_Crising_SWB%2307.pdf Alt URL] At 03:00 UTC on that day, the PAGASA reported that the system degenerated to an area of low-pressure in the vicinity of Piagapo in Lanao del Sur, thus lifting all warning signals on Mindanao and issuing their final advisory.{{Cite PAGASA|date=May 15, 2021|name=Crising|type=swb|no=11-FINAL|category=LPA|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/SWB%2311_crising.pdf}}{{dead link|date=August 2023|bot=medic}}{{cbignore|bot=medic}} [https://archive.org/download/pagasa-21-TC03/PAGASA_21-TC03_Crising_SWB%2311-FINAL.pdf Alt URL] On May 14, the system dissipated over the Sulu Sea, and both the JMA and the JTWC issued their final advisories on the storm.

In preparations for the storm, the local government of Davao Occidental raised a blue alert on May 13, with the authorities in the area preparing rescue equipment in case of emergency. The PAGASA also warned small vessels near the area to stay away from the rough seas caused by the storm.{{Cite web|last=Arceo|first=Acor|date=May 13, 2021|title=Crising weakens into tropical depression, makes landfall in Davao Oriental|url=https://www.rappler.com/nation/weather/tropical-storm-crising-pagasa-forecast-may-13-2021-11pm|access-date=May 14, 2021|website=Rappler|language=en}} Schools were ordered to be suspended for that day in Davao Occidental, including the submission of modules. When Crising made landfall, it caused widespread rains and flooding across Mindanao and Southern Visayas. Gusty winds were also felt in parts of Mindanao where the storm passed.{{Cite web |title=bwp012021.dat |url=https://www.ssd.noaa.gov/PS/TROP/DATA/ATCF/JTWC/bwp012021.dat |access-date=March 27, 2022 |website=Joint Typhoon Warning Center |via=National Oceanic and Atmospheric Administration}} In Baganga, some trees were knocked down by strong winds, while strong winds with heavy rainfall were reported in Cateel and Boston, all in the province.{{Cite web|date=May 13, 2021|title=Malakas na ulan at hangin, naranasan sa Davao Oriental sa pag-landfall ng bagyong 'Crising'|url=https://news.abs-cbn.com/news/05/13/21/malakas-na-ulan-at-hangin-naranasan-sa-davao-oriental-sa-pag-landfall-ng-bagyong-crising|access-date=May 14, 2021|website=ABS-CBN News|language=tl}} Three men and a carabao were required to be rescued from the rising Kabacan River in the early hours of May 14; they were successfully released safely from the said river.{{Cite web|title=3 tao, 1 kalabaw, nailigtas sa rumaragasang ilog sa Cotabato|url=https://www.gmanetwork.com/news/balitambayan/promdi/787445/3-tao-1-kalabaw-nailigtas-sa-rumaragasang-ilog-sa-cotabato/story/|access-date=May 14, 2021|website=GMA News|language=tl}} An evacuation center in South Upi, Maguindanao were reported to be flooded and some crops near the center were submerged in floodwaters, all due to a rising river near the area. Agricultural damages were estimated at ₱23.2 million (US$486,000).{{cite web|title=SitRep no.06 re Preparedness Measures for Tropical Depression CRISING|url=https://ndrrmc.gov.ph/attachments/article/4157/NDRRMC_Update_SitRep_No_06_re_TS_CRISING.pdf|date=May 28, 2021|publisher=NDRRMC}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=May 29

|Dissipated=June 5

|Image=Choi-wan 2021-06-01 0510Z.jpg

|Track=Choi-wan 2021 track.png

|10-min winds=40

|1-min winds=45

|Pressure=998

}}

{{main|Tropical Storm Choi-wan (2021)}}

On May 27, the JMA and the JTWC noted the persistence of an area of atmospheric convection about {{convert|425|nmi}} south-southeast of Guam.{{Cite web|title=WWJP27 RJTD 270600|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210527/060000/A_WWJP27RJTD270600_C_RJTD_20210527082817_69.txt|url-status=dead|archive-url=https://archive.today/20210529211545/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210527/060000/A_WWJP27RJTD270600_C_RJTD_20210527082817_69.txt|archive-date=May 29, 2021}} The area's nearby environment exhibited low wind shear and warm sea surface temperatures, which were ideal conditions for tropical cyclogenesis.{{Source-attribution|sentence=yes|{{Cite report|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans|date=May 27, 2021|publisher=United States Joint Typhoon Warning Center|access-date=May 27, 2021|archive-url=https://web.archive.org/web/20210610093711/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=June 10, 2021}} [https://wiki.chlod.net/jtwc/text/2021-05-27-0200-abpwweb.txt Alt URL] }} The JMA assessed the area to have developed into a tropical depression on May 29 at 06:00 UTC.{{cite web |title=WWJP27 RJTD 290600 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=May 29, 2021 |archive-url=https://archive.today/20210529085651/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |archive-date=May 29, 2021 |date=May 29, 2021}} The PAGASA made a similar assessment in a Tropical Cyclone Advisory issued at 15:00 UTC.{{Cite PAGASA|date=May 29, 2021|type=tca|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/tca.pdf|url-status=live|archive-date=2021-05-29|archive-url=https://web.archive.org/web/20210529172244/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/tca.pdf}} [https://archive.org/download/pagasa-21-TC04/PAGASA_21-TC04_Dante_TCA%2301.pdf Alt URL] The JTWC later followed with their own assessment, identifying the center of the newly developed tropical depression and assigning the designation 04W.{{Cite JTWC|date=May 29, 2021|type=warn|category=TD|designation=04W|no=1|name=Four|url=https://www.metoc.navy.mil/jtwc/products/wp0421web.txt|url-status=dead|archive-date=2021-05-30|archive-url=https://web.archive.org/web/20210530183347/https://www.metoc.navy.mil/jtwc/products/wp0421web.txt}} [https://wiki.chlod.net/jtwc/text/2021-05-29-2050-wp0421web.txt Alt URL] As the system tracked westward, it entered the Philippine Area of Responsibility at 01:00 PHT (17:00 UTC).{{Cite tweet|number=1398720419914342402|user=dost_pagasa|title=TROPICAL CYCLONE UPDATE - 3:15 AM, 30 May 2021 - At 1:00 AM today, the Tropical Depression east of Mindanao entered the Philippine Area of Responsibility and was named "DANTE". Tropical Cyclone Bulletins will be issued beginning at 5:00 AM today.|author=PAGASA-DOST}} The PAGASA then named the storm Dante in its first Tropical Cyclone Bulletin for the storm.{{Cite PAGASA|date=May 29, 2021|name=Dante|type=tcb|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin.pdf|url-status=live|archive-date=2015-04-03|archive-url=https://web.archive.org/web/20150403161251/http://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin.pdf}} [https://archive.org/download/pagasa-21-TC04/PAGASA_21-TC04_Dante_TCB%2301.pdf Alt URL] Dante further organized in the Philippine Sea,{{Cite web|date=May 30, 2021|title=Prognostic Reasoning for Tropical Depression 04W (Four) Warning NR 004|url=https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210530/150000/A_WDPN31PGTW301500_C_RJTD_20210530150318_19.txt|url-status=dead|archive-url=https://archive.today/20210531035020/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210530/150000/A_WDPN31PGTW301500_C_RJTD_20210530150318_19.txt|archive-date=May 31, 2021|access-date=June 2, 2021|work=Joint Typhoon Warning Center|via=Tokyo Global Information System Centre}} and on May 30 at 15:00 UTC, the JTWC upgraded it to a tropical storm,{{Cite web|date=May 30, 2021|title=Tropical Storm 04W (Four) Warning NR 004|url=https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210530/150000/A_WTPN31PGTW301500_C_RJTD_20210530143316_24.txt|url-status=dead|archive-url=https://archive.today/20210531035024/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210530/150000/A_WTPN31PGTW301500_C_RJTD_20210530143316_24.txt|archive-date=May 31, 2021|access-date=June 2, 2021|work=Joint Typhoon Warning Center|via=Tokyo Global Information System Centre}} with the PAGASA doing the same at 21:00 UTC.{{Cite web|date=May 30, 2021|title=Tropical Cyclone Bulletin #5 for Tropical Storm 'Dante'|url=http://bagong.pagasa.dost.gov.ph/tropical-cyclone-bulletin-iframe|url-status=dead|archive-url=https://web.archive.org/web/20210530042316/http://bagong.pagasa.dost.gov.ph/tropical-cyclone-bulletin-iframe|archive-date=May 30, 2021|access-date=June 2, 2021|website=PAGASA}} On the next day at 00:00 UTC, the JMA also upgraded Dante into a tropical storm, giving it the international name Choi-wan.{{Cite web|date=May 31, 2021|title=WTPQ50 RJTD 310000|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|url-status=dead|archive-url=https://archive.today/20210531033651/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|archive-date=May 31, 2021|access-date=June 2, 2021|work=Japan Meteorological Agency|via=National Oceanic and Atmospheric Administration}} Choi-wan's center was exposed due to a tropical upper tropospheric trough from the northeast, inducing shear on the system.{{Cite JTWC|date=May 31, 2021|type=prog|category=TS|designation=04W|no=6|name=Four|url=https://www.metoc.navy.mil/jtwc/products/wp0421prog.txt|url-status=dead|archive-date=2021-05-30|archive-url=https://web.archive.org/web/20210530183310/https://www.metoc.navy.mil/jtwc/products/wp0421prog.txt}} [https://wiki.chlod.net/jtwc/prog/2021-05-31-0230-wp0421prog.txt Alt URL] On June 1 at 12:30 UTC, Choi-wan made landfall on Sulat, Eastern Samar as a minimal tropical storm,{{Cite news|date=June 1, 2021|title=Tropical Storm Dante makes landfall over Eastern Samar|work=ABS-CBN News and Current Affairs|url=https://news.abs-cbn.com/news/06/01/21/tropical-storm-dante-makes-landfall-over-eastern-samar|access-date=June 2, 2021}} with the JTWC downgrading it to a tropical depression at 15:00 UTC.{{Cite web|date=June 1, 2021|title=Tropical Depression 04W (Choi-wan) Warning NR 012|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|url-status=dead|archive-url=https://archive.today/20210601144056/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-date=June 1, 2021|access-date=June 2, 2021|work=Joint Typhoon Warning Center|via=National Oceanic and Atmospheric Administration}} It made a second landfall on Cataingan at 17:00 UTC.{{Cite news|last=Arceo|first=Acor|date=June 2, 2021|title=Tropical Storm Dante heads for Romblon after 2nd landfall in Masbate|work=Rappler|url=https://www.rappler.com/nation/weather/tropical-storm-dante-pagasa-forecast-june-2-2021-5am|access-date=June 2, 2021}} Choi-wan made several more landfalls on the Philippines, making its third landfall on Balud, Masbate at 19:30 UTC. It made a fourth landfall on Romblon, Romblon on June 2 at 00:00 UTC, a fifth on San Agustin, Romblon at 00:50 UTC, a sixth on Pola, Oriental Mindoro at 06:00 UTC, a seventh on Tingloy, Batangas at 11:20 UTC, and an eighth and final landfall on the Calatagan Peninsula before moving into the South China Sea.{{Cite web|last=Arceo|first=Acor|date=June 3, 2021|title=Tropical Storm Dante makes 7th, 8th landfalls in Batangas|url=https://www.rappler.com/nation/weather/tropical-storm-dante-pagasa-forecast-june-2-2021-11pm|access-date=June 3, 2021|website=Rappler}} On June 3 at 03:00 UTC, the JTWC upgraded Choi-wan back to a tropical storm.{{Cite web|date=June 3, 2021|title=Tropical Storm 04W (Choi-wan) Warning NR 018|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|url-status=live|archive-url=https://web.archive.org/web/20210603024531/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-date=June 3, 2021|access-date=June 3, 2021|website=Joint Typhoon Warning Center|via=National Oceanic and Atmospheric Administration}} At 03:00 UTC, the PAGASA removed all Tropical Cyclone Warning Signals as Choi-wan moved away from the country.{{Cite web|date=June 3, 2021|title=Tropical Cyclone Bulletin no. 27 for Tropical Storm "Dante" (Choi-wan)|url=http://bagong.pagasa.dost.gov.ph/tropical-cyclone-bulletin-iframe|url-status=live|archive-url=https://web.archive.org/web/20210603034128/http://bagong.pagasa.dost.gov.ph/tropical-cyclone-bulletin-iframe|archive-date=June 3, 2021|access-date=June 3, 2021|website=PAGASA}} Choi-wan then exited the PAR on June 3 at 18:00 UTC{{Cite news|last=Arceo|first=Acor|date=June 4, 2021|title=Tropical Storm Dante exits PAR but may reenter|work=Rappler|url=https://www.rappler.com/nation/weather/tropical-storm-dante-lpa-pagasa-forecast-june-4-2021-5am|access-date=June 5, 2021}} before weakening into a tropical depression on the next day at 06:00 UTC and re-entering the PAR at 08:00 UTC.{{Cite news|last=Arceo|first=Acor|date=June 5, 2021|title=Dante weakens into tropical depression, reenters PAR|work=Rappler|url=https://www.rappler.com/nation/weather/tropical-depression-dante-pagasa-forecast-june-4-2021-5pm|access-date=June 5, 2021}} Then, it passed southeast of the island of Taiwan{{Cite web|title=Warning lifted after Choi-Wan downgraded to tropical depression - Focus Taiwan|url=https://focustaiwan.tw/society/202106040025|access-date=June 4, 2021|website=focustaiwan.tw|date=June 4, 2021 |language=zh-hant}} before moving out near the Okinawa Prefecture and heading towards Japan.{{citation needed|date=June 2021}} On June 5 at 06:00 UTC, the Japan Meteorological Agency issued their final advisory on the system.{{Cite web|date=June 5, 2021|title=WTPQ50 RJTD 050600|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|url-status=dead|archive-url=https://archive.today/20210605074028/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|archive-date=June 5, 2021|access-date=June 12, 2021|website=Japan Meteorological Agency|via=National Oceanic and Atmospheric Administration}} 3 hours later at 09:00 UTC, the JTWC upgraded Choi-wan back into a tropical storm,{{Cite JTWC|date=June 5, 2021|type=warn|category=TS|designation=04W|no=27|name=Choi-wan|url=https://www.metoc.navy.mil/jtwc/products/wp0421web.txt|url-status=dead|archive-date=June 5, 2021|archive-url=https://archive.today/20210605095951/https://www.metoc.navy.mil/jtwc/products/wp0421web.txt}} however at 15:00 UTC, the Joint Typhoon Warning Center downgraded the system to a tropical depression, also issuing their final advisory on the system.{{Cite web|date=June 5, 2021|title=Tropical Depression 04W (Choi-wan) Warning NR 028|url=https://www.metoc.navy.mil/jtwc/products/wp0421web.txt|url-status=dead|archive-url=https://archive.today/20210605185440/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-date=June 5, 2021|access-date=June 5, 2021|website=Joint Typhoon Warning Center}}

Heavy rains caused floods in parts of Mindanao;{{Cite web|date=May 31, 2021|title=Tropical Storm Choi-wan (GDACS, JTWC, PAGASA, WMO, media)|url=https://erccportal.jrc.ec.europa.eu/Echo-Flash#/daily-flash-archive/4207|access-date=May 31, 2021|website=Directorate-General for European Civil Protection and Humanitarian Aid Operations}} 11 fatalities were reported, 3 people were injured, and 2 people are missing.{{Cite report|url=https://ndrrmc.gov.ph/attachments/article/4162/SitRep_No_6_TS_Dante_2021_Update.pdf|title=SitRep no.06 re Preparedness Measures and Effects of ITCZ enhanced by TS DANTE|date=June 6, 2021|publisher=National Disaster Risk Reduction and Management Council|access-date=June 6, 2021}} As of June 4, 55,226 people were affected and 16,680 people are inside evacuation centers. A total of ₱307.2 million (US$6.39 million) of damages were incurred throughout the country, of which ₱152.1 million (US$3.17 million) was agricultural damages and ₱155.1 million (US$3.23 million) was related to infrastructure.{{Cite news|title=SitRep no.10 re Preparedness Measures and Effects of ITCZ enhanced by TS DANTE|agency=NDRRMC|url=https://ndrrmc.gov.ph/attachments/article/4162/SitRep_No_10_TS_Dante_2021_Update.pdf|access-date=June 11, 2021}}{{Dead link|date=December 2021 |bot=InternetArchiveBot |fix-attempted=yes }} On June 1, classes and government work for parts of Davao de Oro, Eastern Samar, Leyte, and Surigao del Sur were suspended for the day.{{Cite news|date=June 1, 2021|title=#WalangPasok: Hunyo 1 dahil sa bagyong Dante|language=tl|work=ABS-CBN News and Current Affairs|url=https://news.abs-cbn.com/news/06/01/21/walangpasok-hunyo-1-dahil-sa-bagyong-dante|access-date=June 1, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=June 11

|Dissipated=June 13

|Image=Koguma 2021-06-12 0605Z.jpg

|Track=Koguma 2021 track.png

|10-min winds=35

|1-min winds=35

|Pressure=996

}}

{{main|Tropical Storm Koguma}}

On June 10, the JTWC started to monitor an area of low-pressure in the South China Sea, approximately {{cvt|518|km}} to the south of Hong Kong, with the agency classifying the system as a monsoon depression.{{Cite report|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 100830Z-110600Z June 2021|date=June 10, 2021|publisher=United States Joint Typhoon Warning Center|access-date=June 11, 2021|archive-url=https://web.archive.org/web/20210610093711/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=June 10, 2021}} Tracking west-northwestward, the storm was located in a favorable environment for further development, with warm sea surface temperatures and low wind shear.{{Cite report|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans 110600Z-120600Z June 2021|date=June 11, 2021|publisher=United States Joint Typhoon Warning Center|access-date=June 11, 2021|archive-url=https://web.archive.org/web/20210611060017/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=June 11, 2021}} At 00:00 UTC on June 11, the JMA upgraded the system into a tropical depression. Six hours later, the JTWC issued a TCFA for the system as it began to show characteristics of a monsoon depression.{{Cite JTWC|date=June 11, 2021|type=tcfa|designation=92W|url=https://www.metoc.navy.mil/jtwc/products/wp9221web.txt|url-status=dead|archive-url=https://web.archive.org/web/20210611000000/https://www.metoc.navy.mil/jtwc/products/wp9221web.txt|archive-date=June 11, 2021|access-date=June 11, 2021}} [https://wiki.chlod.net/jtwc/text/latest-wp9221web.txt Alt URL] By 18:00 UTC, the JMA upgraded the system to a tropical storm, assigning it the name Koguma. On June 12 at 00:00 UTC, the JTWC upgraded Koguma to a tropical depression, assigning it the designation 05W.{{Cite web |title=bwp052021.dat |url=https://www.ssd.noaa.gov/PS/TROP/DATA/ATCF/JTWC/bwp052021.dat |access-date=March 23, 2022 |website=United States Naval Research Laboratory}} Later that day, the JTWC also upgraded Koguma to a tropical storm. By June 12, it had made landfall southeast of Hanoi,{{Cite JTWC|date=June 12, 2021|type=warn|category=TD|designation=05W|no=4A Corrected|name=Koguma|url=https://www.metoc.navy.mil/jtwc/products/wp0521web.txt|archive-url=https://web.archive.org/web/20210612000000/https://www.metoc.navy.mil/jtwc/products/wp0521web.txt|url-status=dead|archive-date=June 12, 2021|access-date=March 23, 2022}} [https://wiki.chlod.net/jtwc/text/2021-06-12-2110-wp0521web.txt Alt URL] and dissipated the next day.{{Cite web |date=August 26, 2021 |title=RSMC Tropical Cyclone Best Track Name 2104 Koguma (2104) |url=https://tgftp.nws.noaa.gov/data/raw/ax/axpq20.rjtd..txt |archive-url=https://archive.today/20210827034915/https://tgftp.nws.noaa.gov/data/raw/ax/axpq20.rjtd..txt |archive-date=August 27, 2021 |access-date=March 23, 2022 |website=Japan Meteorological Agency |via=National Oceanic and Atmospheric Administration}}

1 person died in Yên Bái province as a result of Koguma.{{cite web|url=http://phongchongthientai.mard.gov.vn/Pages/thiet-hai-do-thien-tai-tu-dau-nam-2021-tinh-den-07h00-ngay-17-6-2021-.aspx|title=Thiệt hại do thiên tai từ đầu năm 2021 (tính đến 07h00 ngày 17/6/2021)|language=vi|access-date=June 17, 2021|date=June 17, 2021|work=Vietnam Disaster Management Authority|archive-url=https://archive.today/20210617055003/http://phongchongthientai.mard.gov.vn/Pages/thiet-hai-do-thien-tai-tu-dau-nam-2021-tinh-den-07h00-ngay-17-6-2021-.aspx|archive-date=June 17, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=June 20

|Dissipated=June 27

|Image=Champi 2021-06-26 0400Z.jpg

|Track=Champi 2021 track.png

|10-min winds=65

|1-min winds=65

|Pressure=980

}}

At 00:00 UTC on June 18, the JTWC started to monitor a broad area of convection nearly {{convert|250|km|mi|abbr=on}} to the south-southwest of Pohnpei.{{cite web|date=June 18, 2021|access-date=June 22, 2021|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 180000Z-180600Z June 2021|archive-url=https://web.archive.org/web/20210618010117/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=June 18, 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}} The system remained weak as it moved northwestwards in a favorable environment for further intensification, characterized by warm sea surface temperatures, low to moderate wind shear and good outflow; the disturbance remained weak as it moved northwestwards.{{cite web|date=June 18, 2021|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans 180600Z-190600Z June 2021|archive-url=https://archive.today/20210618070934/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=June 18, 2021|access-date=June 22, 2021|website=Joint Typhoon Warning Centre|location=Pearl Harbor, Hawaii}} The JTWC issued a TCFA on the system two days later, though the system remained disorganized.{{cite web|url=https://www.metoc.navy.mil/jtwc/products/wp9421web.txt|title=Tropical Cyclone Formation Alert for Tropical Disturbance 94W (Invest)|archive-url=https://archive.today/20210620191433/https://www.metoc.navy.mil/jtwc/products/wp9421web.txt|archive-date=June 20, 2021|access-date=June 22, 2021|website=Joint Typhoon Warning Centre|location=Pearl Harbor, Hawaii}}{{cite web|access-date=June 22, 2021|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 201330Z-210600Z June 2021|archive-url=https://archive.today/20210620223422/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=June 20, 2021|website=Joint Typhoon Warning Centre|location=Pearl Harbor, Hawaii}} The JMA upgraded the system to a tropical depression at 00:00 UTC on June 21.{{cite web|access-date=June 22, 2021|title=WWJP27 RJTD 210000|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-url=https://archive.today/20210621060833/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=June 21, 2021|website=Japan Meteorological Agency}} Meanwhile, the JTWC designated it as 06W in their first advisory on the system, with an exposed LLCC being evident on satellite imagery due to moderate wind shear, being induced by a tropical upper tropospheric trough to its north.{{Cite web|date=June 21, 2021|title=Tropical Depression 06W (Six) Warning NR 001|url=https://www.metoc.navy.mil/jtwc/products/wp0621web.txt|url-status=dead|archive-url=https://archive.today/20210621030440/https://www.metoc.navy.mil/jtwc/products/wp0621web.txt|archive-date=June 21, 2021|access-date=June 21, 2021|website=Joint Typhoon Warning Centre|location=Pearl Harbor, Hawaii}}{{cite web|url=https://www.metoc.navy.mil/jtwc/products/wp0621prog.txt|archive-url=https://archive.today/20210621060756/https://www.metoc.navy.mil/jtwc/products/wp0621prog.txt|date=June 21, 2021|archive-date=June 21, 2021|access-date=June 22, 2021|title=Prognostic Reasoning for Tropical Depression 06W (Six) Warning NR 001|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}} By 21:00 on June 21, 06W made its closest passage to the south-southwest of Guam, continuing its northwest track.{{cite web|url=https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=5&glossary=0|title=Tropical Depression 06W Intermediate Advisory Number 3A|author=Mike Middlebrook|publisher=National Weather Service|location=Tiyan, Guam|date=June 22, 2021|access-date=June 22, 2021|archive-url=https://archive.today/20210622031311/https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=5&glossary=0|archive-date=June 22, 2021}}{{cite web|url=https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=4&glossary=0|title=Tropical Depression 06W Intermediate Advisory Number 4|author=Mike Middlebrooke|publisher=National Weather Service|location=Tiyan, Guam|date=June 22, 2021|access-date=June 22, 2021|archive-url=https://archive.today/20210622031640/https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=4&glossary=0|archive-date=June 22, 2021}} On June 22, at 06:00 UTC, the JTWC upgraded the system into a tropical storm as it continued to move away from Guam.{{cite web|url=https://www.metoc.navy.mil/jtwc/products/wp0621web.txt|title=TROPICAL STORM 06W (SIX) WARNING NR 006|website=www.metoc.navy.mil|author= |publisher=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii|date=June 22, 2021|access-date=June 22, 2021|archive-url=https://archive.today/20210622073836/https://www.metoc.navy.mil/jtwc/products/wp0621web.txt|archive-date=June 22, 2021}} The JMA followed and upgraded the system into a tropical storm, in June 23 at 00:00 UTC, and assigned it the name Champi.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 230000|author=|publisher=Japan Meteorological Agency|date=June 23, 2021|access-date=June 23, 2021|archive-url=https://web.archive.org/web/20210623044528/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=June 23, 2021}} At 18:00 UTC, the JMA upgraded the storm to a severe tropical storm as it turned northwestwards.{{cite web|title=RSMC Tropical Cyclone Prognostic Reasoning No. 9 for STS 2105 CHAMPI (2105)|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|website=Joint Typhoon Warning Centre|location=Pearl Harbor, Hawaii|access-date=June 24, 2021|date=June 24, 2021|archive-url=https://archive.today/20210624032314/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=June 24, 2021}} At this time, a microwave imagery scan of Champi revealed an eye feature emerging in the system; however, this was short lived as dry air continued to impact the storm from the west.{{cite web|title=Prognostic Reasoning for Tropical Storm 06W (Champi) Warning NR 013|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|website=Joint Typhoon Warning Center|archive-url=https://archive.today/20210624032536/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=June 24, 2021|access-date=June 24, 2021}} In addition, poleward outflow on the system remained weak on June 24, restricting Champi to significantly develop.{{cite web|title=Prognostic Reasoning for Tropical Storm 06W (Champi) Warning NR 016|url=https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210624/210000/A_WDPN31PGTW242100_C_RJTD_20210624210931_5.txt|archive-url=https://archive.today/20210625031241/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210624/210000/A_WDPN31PGTW242100_C_RJTD_20210624210931_5.txt|archive-date=June 25, 2021|access-date=June 25, 2021|website=Joint Typhoon Warning Centre|location=Pearl Harbor, Hawaii}} However, on the next day, as a shortwave trough crossed the Ryukyu Islands, the outflow increased on the storm which allowed it to intensify further.{{cite web|title=Prognostic Reasoning for Tropical Storm 06W (Champi) Warning NR 017|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-url=https://archive.today/20210625031616/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=June 25, 2021|access-date=June 25, 2021|website=Joint Typhoon Warning Centre|location=Pearl Harbor, Hawaii}} On June 25, at 06:00 UTC, the JMA officially declared the storm a typhoon.{{cite web|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|title=Tropical Cyclone Information about Typhoon 2105 (Champi)|website=www.data.jma.go.jp|author=|publisher=Japan Meteorological Agency|date=June 25, 2021|access-date=June 25, 2021|archive-url=https://archive.today/20210625070715/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|archive-date=June 25, 2021}} The JTWC soon followed, upgrading it into a Category 1-equivalent typhoon.{{cite web|url=https://www.metoc.navy.mil/jtwc/products/wp0621web.txt|title=TYPHOON 06W (CHAMPI) WARNING NR 018|website=www.metoc.navy.mil/jtwc|publisher=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii|date=June 25, 2021|access-date=June 25, 2021|archive-url=https://web.archive.org/web/20210625080043/https://www.metoc.navy.mil/jtwc/products/wp0621web.txt|archive-date=June 25, 2021}} At this time, a Champi turned north and north-northwestwards, and subsequently reached its peak intensity of 120 km/h (75 mph) ten-minute maximum sustained winds with a minimum barometric pressure of {{convert|980|hPa|inHg|abbr=on|sigfig=4|comma=off}} by 21:00 UTC on June 25, however it was downgraded to a tropical storm a day later.{{cite web|title=Prognostic Reasoning for Tropical Storm 06W (Champi) Warning NR 020|url=https://www.metoc.navy.mil/jtwc/products/wp0621prog.txt|access-date=June 26, 2021|website=Joint Typhoon Warning Centre|location=Pearl Harbor, Hawaii|archive-url=https://archive.today/20210625212008/https://www.metoc.navy.mil/jtwc/products/wp0621prog.txt|archive-date=June 25, 2021|date=June 25, 2021}} The storm continued to weaken as it move towards the Japanese islands, until on June 27, the JMA issued its last advisory at 12:00 UTC as the system became an extratropical low.{{cite web|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|title=Tropical Cyclone Information for Extratropical Low T2105 (Champi)|website=www.data.jma.go.jp|publisher=Japan Meteorological Agency|date=June 27, 2021|access-date=June 27, 2021|archive-url=https://archive.today/20210627130126/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|archive-date=June 27, 2021}} The JTWC also issued its last warning for Champi at 09:00 UTC, same day.{{cite web|url=https://wiki.chlod.net/jtwc/text/latest-wp0621web.txt|title=TROPICAL STORM 06W (CHAMPI) WARNING NR 026|publisher=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii|date=June 27, 2021|access-date=June 27, 2021|archive-url=https://archive.today/20210627095826/https://wiki.chlod.net/jtwc/text/latest-wp0621web.txt|archive-date=June 27, 2021}}

In the wake of the tropical depression, the National Weather Service in Guam issued a tropical storm watch for Rota in the Northern Mariana Islands and a tropical storm warning for the whole island of Guam on June 21.{{cite web|url=https://forecast.weather.gov/product.php?issuedby=PQ1&product=TCP&site=gum|title=Public Tropical Cyclone Advisory No. 1 for Tropical Depression 06W|author=Landon Aydlett|publisher=National Weather Service, Guam|location=Tiyan, Guam|date=June 21, 2021|access-date=June 22, 2021|archive-url=https://archive.today/20210621053148/https://forecast.weather.gov/product.php?issuedby=PQ1&product=TCP&site=gum|archive-date=June 21, 2021}}{{Cite news|date=June 21, 2021|title=Tropical storm warning now in effect for Guam|work=Pacific Daily News|url=https://www.guampdn.com/story/news/local/2021/06/21/tropical-disturbance-likely-intensify-before-passing-south-guam/7765664002/|access-date=June 22, 2021|archive-url=https://archive.today/20210622024530/https://www.guampdn.com/story/news/local/2021/06/21/tropical-disturbance-likely-intensify-before-passing-south-guam/7765664002/|archive-date=June 22, 2021}} Marine and flash flood warnings were also posted on the former and on Saipan, Tinian, and other islands in the east and south, while classes on an elementary and a high school in the latter were suspended the next day due to a reported power outage.{{Cite news|date=June 22, 2021|title=Flash flood warning, high surf and small craft advisories in effect|work=Saipan Tribune|url=https://www.saipantribune.com/index.php/flash-flood-warning-high-surf-and-small-craft-advisories-in-effect/|access-date=June 22, 2021|archive-url=https://archive.today/20210622025609/https://www.saipantribune.com/index.php/flash-flood-warning-high-surf-and-small-craft-advisories-in-effect/|archive-date=June 22, 2021}}{{Cite news|last=Matanane|first=Sabrina Salas|date=June 22, 2021|title=TD 06W CPA has passed; Notice of GDOE Classes Canceled; GPA Respond to Outages; Report Impassable Roadways to the JIC|work=Kuam News|url=https://www.kuam.com/story/44145377/td-06w-cpa-has-passed-notice-of-gdoe-classes-canceled-gpa-respond-to-outages-report-impassable-roadways-to-the-jic|access-date=June 22, 2021|archive-url=https://archive.today/20210622030422/https://www.kuam.com/story/44145377/td-06w-cpa-has-passed-notice-of-gdoe-classes-canceled-gpa-respond-to-outages-report-impassable-roadways-to-the-jic|archive-date=June 22, 2021}} Electrical disruptions were also experienced on Chalan Pago, Toto/Canada, and Santa Rita in Guam due to the system's near approach. As it moved away from the island and the Marianas, the watch and warning in those areas were lifted at 01:00 UTC on June 22.{{cite web|url=https://forecast.weather.gov/product.php?issuedby=PQ1&product=TCP&site=gum|title=Tropical Depression 06W Intermediate Advisory Number 4A|author=Landon Aydlett|publisher=National Weather Service|location=Tiyan, Guam|date=June 21, 2021|access-date=June 22, 2021|archive-url=https://web.archive.org/web/20210622014617/https://forecast.weather.gov/product.php?issuedby=PQ1&product=TCP&site=gum|archive-date=June 22, 2021}} In the Bonin Islands, residents in the area were advised of rough seas and gusty winds caused by Champi.{{Cite news|date=June 26, 2021|title=Typhoon Champi approaching Ogasawara Islands|work=NHK (Japan Broadcasting Corporation)|url=https://www3.nhk.or.jp/nhkworld/en/news/20210625_31/|access-date=June 26, 2021|archive-url=https://archive.today/20210626054304/https://www3.nhk.or.jp/nhkworld/en/news/20210625_31/|archive-date=June 26, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=July 3

|Dissipated=July 6

|Image=Emong 2021-07-05 0225Z.jpg

|Track=Emong 2021 track.png

|10-min winds=30

|1-min winds=30

|Pressure=1004

}}

On July 2, the JTWC started to monitor a tropical disturbance to the southwest of Guam.{{cite web|date=July 2, 2021|access-date=July 4, 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-02-1850-abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 021830Z-030600Z July 2021|archive-url=https://archive.today/20210704012557/https://wiki.chlod.net/jtwc/text/2021-07-02-1850-abpwweb.txt|archive-date=July 4, 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}} Moving northwestwards, the disturbance was located in an environment conducive for intensification in the Philippine Sea, with warm sea surface temperatures, and low wind shear, in addition to good poleward outflow, being induced by an upper-level trough to the northwest.{{cite web|date=July 3, 2021|access-date=July 4, 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-03-0610-abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans 030600Z-040600Z July 2021|archive-url=https://archive.today/20210704012716/https://wiki.chlod.net/jtwc/text/2021-07-03-0610-abpwweb.txt|archive-date=July 4, 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}}{{cite web|date=July 3, 2021|access-date=July 4, 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-03-1510-abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 031530Z-040600Z July 2021|archive-url=https://archive.today/20210704012801/https://wiki.chlod.net/jtwc/text/2021-07-03-1510-abpwweb.txt|archive-date=July 4, 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}} The JMA upgraded the broad and weak system to a tropical depression at 18:00 UTC on the next day,{{cite web |title=WWJP27 RJTD 031800 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=July 3, 2021 |archive-url=https://archive.today/20210703203517/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |archive-date=July 3, 2021 |date=July 3, 2021 |url-status=live }} followed by a TCFA being issued by the JTWC an hour and a half later.{{cite web |title=Tropical Cyclone Formation Alert (Invest 96W) |url=https://www.metoc.navy.mil/jtwc/products/wp9621web.txt |access-date=July 3, 2021 |archive-url=https://archive.today/20210703202801/https://www.metoc.navy.mil/jtwc/products/wp9621web.txt |archive-date=July 3, 2021 |date=July 3, 2021 |website=Joint Typhoon Warning Center |location=Pearl Harbor, Hawaii |url-status=dead }}{{cite web|date=July 3, 2021|access-date=July 4, 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-03-1950-abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 032000Z-040600Z July 2021|archive-url=https://archive.today/20210704013251/https://wiki.chlod.net/jtwc/text/2021-07-03-1950-abpwweb.txt|archive-date=July 4, 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}} The PAGASA subsequently upgraded the system to a tropical depression at 02:00 UTC on July 4, naming it Emong.{{cite tweet|author=Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA)|link=https://twitter.com/dost_pagasa/status/1411514409793380357|access-date=July 4, 2021|title=Tropical Cyclone Update 10:00AM, 04 July 2021 At 8:00 AM today, the Low Pressure Area east of Guiuan, Eastern Samar developed into Tropical Depression #EmongPH. Severe Weather Bulletins will be issued beginning 11:00 AM today.|number=1411514409793380357|user=PAGASA}}{{Cite news|last=Arceo|first=Acor|date=July 4, 2021|title=LPA east of Eastern Samar develops into Tropical Depression Emong|work=Rappler|url=https://www.rappler.com/nation/weather/tropical-depression-emong-pagasa-forecast-july-4-2021-11am|access-date=July 4, 2021}} At 21:00 UTC, the JTWC also upgraded the system to a tropical depression, designating it as 07W.{{cite web|url=https://wiki.chlod.net/jtwc/text/2021-07-04-2040-wp0721web.txt|title=Tropical Depression 07w (Seven) Warning NR 001|publisher=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii|date=July 4, 2021|access-date=July 5, 2021|archive-url=https://web.archive.org/web/20210705023900/https://wiki.chlod.net/jtwc/text/2021-07-04-2040-wp0721web.txt|archive-date=July 5, 2021}} On July 6, PAGASA issued its last advisory on Tropical Depression Emong at 03:00 UTC as it moved outside the PAR and also lift up the warnings which were imposed earlier in the wake of Emong.{{Cite PAGASA|date=July 6, 2021|name=Emong|type=tropical cyclone bulletin|no=13-FINAL|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_emong.pdf|url-status=live|archive-date=July 6, 2021|archive-url=https://web.archive.org/web/20210706040439/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_emong.pdf}} Meanwhile, the JMA soon followed and issued its last advisory.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp26.rjtd..txt|title=WWJP26 RJTD 120300|publisher=Japan Meteorological Agency|date=July 6, 2021|access-date=July 6, 2021|archive-url=https://web.archive.org/web/20210328201845/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp26.rjtd..txt|archive-date=March 28, 2021}} JTWC also issued its last advisory as its convection was significantly sheared and its low level circulation dissipated rapidly over six hours.{{Cite JTWC|date=July 6, 2021|type=warn|category=TD|designation=07W|no=6|name=Seven|url=https://www.metoc.navy.mil/jtwc/products/wp0721web.txt|url-status=dead|archive-date=July 6, 2021|archive-url=https://web.archive.org/web/20210706041232/https://www.metoc.navy.mil/jtwc/products/wp0721web.txt}}{{Cite JTWC|date=July 6, 2021|type=warn|category=TD|designation=07W|no=6|name=Seven|url=https://wiki.chlod.net/jtwc/text/2021-07-06-0340-wp0721web.txt|url-status=live|archive-date=July 6, 2021|archive-url=https://web.archive.org/web/20210706041315/https://wiki.chlod.net/jtwc/text/2021-07-06-0340-wp0721web.txt}}

In the Philippines, the depression's approach required the raising of Public Storm Warning Signal No. 1 in the provinces of Batanes and the northeastern portion of Cagayan, including the Babuyan Islands, starting on July 4.{{Cite news|date=July 4, 2021|title=Tropical depression Emong is here: Storm signal no.1 up in Batanes, Cagayan|work=ABS-CBN News|url=https://news.abs-cbn.com/news/07/04/21/lpa-off-eastern-samar-now-tropical-depression-emong|access-date=July 4, 2021}}{{cite PAGASA|date=July 4, 2021|name=Emong|type=swb|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_emong.pdf|archive-url=https://web.archive.org/web/20210704062342/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_emong.pdf|archive-date=July 4, 2021}} The Office of Civil Defense of Cagayan were also on blue alert on the next day due to the storm, with the agency conducting a pre-disaster assessment with other government bureaus that day.{{Cite news|last=Visaya Jr.|first=Villamor|date=July 5, 2021|title=Cagayan Valley placed on blue alert ahead of 'Emong'|newspaper=Philippine Daily Inquirer|url=https://newsinfo.inquirer.net/1455558/cagayan-valley-placed-on-blue-alert-ahead-of-emong|access-date=July 5, 2021}} The residents in the coastal areas of Palanan, Divilacan, Maconacon and Dinapigue in Isabela were also warned of the storm while fishing activities in the region were prohibited due to Emong.

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=July 5

|Dissipated=July 8

|Image=08W 2021-07-07 1820Z.jpg

|Track=08W 2021 track.png

|10-min winds=30

|1-min winds=25

|Pressure=1000

}}

At 12:00 UTC on July 3, the PAGASA started to monitor a low-pressure area that developed near Torrijos, Marinduque or 149 kilometers to the south of Manila, followed by the Joint Typhoon Warning Center (JTWC)'s advisory at 01:00 UTC on the next day, citing the system's development as "low".{{Cite web|date=July 4, 2021|title=Weather Advisory Number 1 for Low Pressure Areas|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/weather_advisory/Advisory%231.pdf|url-status=live|archive-url=https://archive.today/20210704022225/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/weather_advisory/Advisory%25231.pdf|archive-date=July 4, 2021|access-date=July 6, 2021|website=Weather Division of PAGASA}}{{cite web|date=July 4, 2021|access-date=July 6, 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-04-0110-abpwweb.txt|archive-url=https://archive.today/20210704013321/https://wiki.chlod.net/jtwc/text/2021-07-04-0110-abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 040100Z-040600Z July 2021|archive-date=July 4, 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}} In the latter's analysis on the disturbance, multispectral and microwave image scans on the system showed a weak low-level circulation center over the eastern part of Mindoro with flaring convection in the western periphery. Traveling northwestwards, the storm was located in an environment conductive for further intensification, with warm sea surface temperatures of {{cvt|30|–|31|C}}, low wind shear around the region and good equatorial outflow; however, model forecasts were split regarding the disturbance's strengthening trend.{{cite web|date=July 4, 2021|access-date=July 6, 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-04-0610-abpwweb.txt|archive-url=https://archive.today/20210706031527/https://wiki.chlod.net/jtwc/text/2021-07-04-0610-abpwweb.txt|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans 040600Z-050600Z July 2021|archive-date=July 6, 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}} Also that day at 15:00 UTC, the low-pressure area exited the Philippine Area of Responsibility (PAR), which was followed by the Japan Meteorological Agency (JMA) upgrading the storm to a tropical depression roughly three hours later.{{Cite web|date=July 5, 2021|title=Weather Advisory Number 4 for Southwest Monsoon|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/weather_advisory/Advisory%234.pdf|url-status=live|archive-url=https://archive.today/20210706032153/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/weather_advisory/Advisory%25234.pdf|archive-date=July 6, 2021|access-date=July 6, 2021|website=Weather Division of PAGASA}}{{cite web|title=WWJP27 RJTD 051800|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-url=https://archive.today/20210705203625/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=July 5, 2021|access-date=July 6, 2021|website=Japan Meteorological Agency|url-status=live}} Eventually, the JTWC upgraded the system's potential intensification trend to "high" and subsequently issued a Tropical Cyclone Formation Alert at 00:30 UTC on June 6 as a circulation became well-defined.{{cite web|title=Tropical Cyclone Formation Alert (Invest 97W)|url=https://wiki.chlod.net/jtwc/text/2021-07-06-0010-wp9721web.txt|archive-url=https://archive.today/20210706033018/https://wiki.chlod.net/jtwc/text/2021-07-06-0010-wp9721web.txt|archive-date=July 6, 2021|date=July 5, 2021|publisher=Joint Typhoon Warning Center |location=Pearl Harbor, Hawaii|access-date=July 7, 2021}} It then changed its motion towards the west along the periphery of a subtropical ridge on the north and northwest as it approached the Hainan Island.{{cite web|title=Tropical Cyclone Formation Alert (Invest 97W) Reissued|url=https://www.metoc.navy.mil/jtwc/products/wp9721web.txt|archive-url=https://archive.today/20210707031323/https://www.metoc.navy.mil/jtwc/products/wp9721web.txt|archive-date=July 7, 2021|date=July 7, 2021|access-date=July 7, 2021|publisher=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii|url-status=dead}} By 06:00 UTC on the next day, the disturbance moved inland on the region near Lingshui Li Autonomous County before emerging on the Gulf of Tonkin, in an area of low to moderate wind shear.{{cite web|date=July 7, 2021|access-date=July 8, 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-07-0620-abpwweb.txt|archive-url=https://archive.today/20210708020925/https://wiki.chlod.net/jtwc/text/2021-07-07-0620-abpwweb.txt|archive-date=July 8, 2021|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans 070600Z-080600Z July 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}}{{cite web|date=July 7, 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-07-0120-abpwweb.txt|archive-url=https://archive.today/20210708021107/https://wiki.chlod.net/jtwc/text/2021-07-07-0110-abpwweb.txt|archive-date=July 8, 2021|access-date=July 8, 2021|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 070100Z-070600Z July 2021|website=Joint Typhoon Warning Center|location=Pearl Harbor, Hawaii}}{{Cite news|date=July 7, 2021|title=Passenger services suspended as tropical depression makes landfall in south China|work=Xinhua|url=http://www.xinhuanet.com/english/2021-07/07/c_1310047783.htm|access-date=July 9, 2021|archive-url=https://archive.today/20210710055501/http://www.xinhuanet.com/english/2021-07/07/c_1310047783.htm|archive-date=July 10, 2021}} Later, the disturbance began to reorganize; however, strong wind gradient suppressed its intensification, with flaring convection displaced to the west. Nine hours later, the JTWC upgraded the system to a weak tropical depression with maximum sustained winds of 45 km/h (30 mph); the JMA analysed the storm to be at 55 km/h (35 mph) and a minimum barometric pressure of 1000 hPa (29.53 inHg).{{Cite JTWC|date=July 7, 2021|type=warn|category=TD|designation=08W|no=1|name=Eight|url=https://wiki.chlod.net/jtwc/text/2021-07-07-1420-wp0821web.txt|access-date=July 7, 2021|url-status=live|archive-date=July 7, 2021|archive-url=https://web.archive.org/web/20210707145932/https://wiki.chlod.net/jtwc/text/2021-07-07-1420-wp0821web.txt}}{{Cite JTWC|date=July 7, 2021|type=prog|category=TD|designation=08W|no=1|name=Eight|url=https://wiki.chlod.net/jtwc/prog/2021-07-07-1420-wp0821prog.txt|access-date=July 7, 2021|url-status=live|archive-date=July 7, 2021|archive-url=https://web.archive.org/web/20210707155119/https://wiki.chlod.net/jtwc/prog/2021-07-07-1420-wp0821prog.txt}}{{cite web|title=WWJP27 RJTD 070600|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210707/060000/A_WWJP27RJTD070600_C_RJTD_20210707081629_1.txt|archive-url=https://archive.today/20210707155013/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210707/060000/A_WWJP27RJTD070600_C_RJTD_20210707081629_1.txt|archive-date=July 7, 2021|access-date=July 8, 2021|website=Japan Meteorological Agency|url-status=live}} By the night of that day, the depression, with the identifier 08W from the JTWC made landfall on Thanh Hoa, Vietnam on that intensity, before subsequently issuing their final warning as the agency confirmed that the system dissipated inland, with the evidences of radar and satellite imagery.{{Cite JTWC|date=July 7, 2021|type=warn|category=TD|designation=08W|no=2|name=Eight|url=https://wiki.chlod.net/jtwc/text/2021-07-07-2050-wp0821web.txt|access-date=July 8, 2021|url-status=live|archive-date=July 8, 2021|archive-url=https://archive.today/20210708024531/https://wiki.chlod.net/jtwc/text/2021-07-07-2050-wp0821web.txt}} The JMA continued to monitor the system until it dissipated at 00:00 UTC on July 8 over Laos.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 080000|publisher=Japan Meteorological Agency|date=July 8, 2021|access-date=July 8, 2021|archive-url=https://archive.today/20210708031459/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=July 8, 2021|url-status=live}}

PAGASA issued rainfall advisories on July 6 as the depression's precursor low tracked near the Philippines.{{Cite tweet |author=PAGASA|url-status=live|link=https://twitter.com/dost_pagasa/status/1411655410688266241|access-date=July 6, 2021|title=RAINFALL ADVISORY No. 1 #NCR_PRSD Weather System: Low-Pressure Area (LPA) Issued at: 8:00 PM,04 July 2021|user=dost_pagasa|number=1411655410688266241|date=July 4, 2021|archive-url=https://archive.today/20210710055710/https://twitter.com/dost_pagasa/status/1411655410688266241|archive-date=July 10, 2021}}{{Cite tweet |author=PAGASA|url-status=live|link=https://twitter.com/dost_pagasa/status/1411700345416208390|access-date=July 6, 2021|title=RAINFALL ADVISORY No. 2 #NCR_PRSD Weather System: Low-Pressure Area (LPA) Issued at: 11:00 PM,04 July 2021|user=dost_pagasa|number=1411700345416208390|2021-07-05|archive-url=https://archive.today/20210710055916/https://twitter.com/dost_pagasa/status/1411700345416208390|archive-date=July 10, 2021}} The China Meteorological Administration (CMA), Hong Kong Observatory (HKO), and Macao Meteorological and Geophysical Bureau (SMG) issued tropical cyclone warnings on July 7.{{cite web|url=https://www.hko.gov.hk/en/wxinfo/dailywx/wxwarntoday.htm|title=Hong Kong Weather Warnings and Signals(07/Jul/2021)|website=www.hko.gov.hk|publisher=Hong Kong Observatory|date=July 7, 2021|access-date=July 7, 2021|archive-url=https://web.archive.org/web/20210707145155/https://www.hko.gov.hk/en/wxinfo/dailywx/wxwarntoday.htm|archive-date=July 7, 2021}}{{cite web|url=http://www.cma.gov.cn/en2014/weather/Warnings/ActiveWarnings/202107/t20210706_580166.html|title=Blue Warning of Typhoon|author=Liu Shuqiao|publisher=China Meteorological Administration|location=Beijing, China|date=July 6, 2021|access-date=July 7, 2021|archive-url=https://archive.today/20210707143620/http://www.cma.gov.cn/en2014/weather/Warnings/ActiveWarnings/202107/t20210706_580166.html|archive-date=July 7, 2021}}{{cite web|url=https://www.smg.gov.mo/en/subpage/28/typhoon-main|title=Tropical Cyclone Information for T.D., 14:05 July 6, 2021|archive-url=https://archive.today/20210706061105/https://www.smg.gov.mo/en/subpage/28/typhoon-main|archive-date=July 6, 2021|website=Macau Meteorological and Geophysical Bureau|date=July 6, 2021}} The warnings imposed by the HKO and SMG were later lifted at 06:10 UTC (14:10 HKT) as the system moved away from Hong Kong and Macao.{{Cite news|date=July 6, 2021|title=Tropical storm Signal 1 raised|work=Macau Business|url=https://www.macaubusiness.com/tropical-storm-signal-1-raised/|access-date=July 8, 2021|archive-url=https://archive.today/20210710060218/https://www.macaubusiness.com/tropical-storm-signal-1-raised/|archive-date=July 10, 2021}} As the depression approached Vietnam, the Vietnamese Ministry of Defense readied 264,272 soldiers and 1,979 vehicles for potential emergencies.{{cite web|url=http://phongchongthientai.mard.gov.vn/Pages/pho-thu-tuong-hop-chi-dao-ung-pho-voi-ap-thap-nhiet-doi-va-mua-lon.aspx|title=Phó Thủ tướng họp chỉ đạo ứng phó với áp thấp nhiệt đới và mưa lớn|language=vi|access-date=July 8, 2021|date=July 6, 2021|archive-url=https://archive.today/20210708025944/http://phongchongthientai.mard.gov.vn/Pages/pho-thu-tuong-hop-chi-dao-ung-pho-voi-ap-thap-nhiet-doi-va-mua-lon.aspx|archive-date=July 8, 2021|work=Vietnam Disaster Management Authority}}{{Cite news|date=July 7, 2021|title=100% tàu thuyền nắm được thông tin áp thấp nhiệt đới, đã và đang vào bờ tránh trú|work=Bao Thanh Hoa|url=https://baothanhhoa.vn/doi-song-xa-hoi/100-tau-thuyen-nam-duoc-thong-tin-ap-thap-nhiet-doi-da-va-dang-vao-bo-tranh-tru/139614.htm|access-date=July 8, 2021|archive-url=https://archive.today/20210708032733/https://baothanhhoa.vn/doi-song-xa-hoi/100-tau-thuyen-nam-duoc-thong-tin-ap-thap-nhiet-doi-da-va-dang-vao-bo-tranh-tru/139614.htm|archive-date=July 8, 2021|language=vi}} Aquaculture activities were also temporarily banned.{{Cite news|date=July 6, 2021|title=Chủ tịch UBND tỉnh Thanh Hóa ra công điện khẩn tập trung ứng phó với Áp thấp nhiệt đới|work=Bao Thanh Hoa|url=https://baothanhhoa.vn/thoi-su/chu-tich-ubnd-tinh-thanh-hoa-ra-cong-dien-khan-tap-trung-ung-pho-voi-ap-thap-nhiet-doi/139539.htm|access-date=July 8, 2021|archive-url=https://archive.today/20210708032037/https://baothanhhoa.vn/thoi-su/chu-tich-ubnd-tinh-thanh-hoa-ra-cong-dien-khan-tap-trung-ung-pho-voi-ap-thap-nhiet-doi/139539.htm|archive-date=July 8, 2021|language=vi}} A peak rainfall total of {{convert|94|mm|in|abbr=on}} was recorded at Sầm Sơn on July 7.{{Cite news|date=July 7, 2021|title=Thanh Hóa sẽ đón đợt mưa 200 mm, đề phòng sạt lở đất, lũ quét|language=Vietnamese|work=Bao Thanh Hoa|url=https://baothanhhoa.vn/moi-truong/thanh-hoa-se-don-dot-mua-200-mm-de-phong-sat-lo-dat-lu-quet/139600.htm|access-date=July 10, 2021|archive-url=https://archive.today/20210710055221/https://baothanhhoa.vn/moi-truong/thanh-hoa-se-don-dot-mua-200-mm-de-phong-sat-lo-dat-lu-quet/139600.htm|archive-date=July 10, 2021}} Rough seas and flooding were experienced in Thanh Hóa's Hoằng Hóa District.{{Cite news|date=July 8, 2021|title=Áp thấp nhiệt đới suy yếu, Thanh Hóa vẫn tiếp tục có mưa diện rộng, sóng lớn trên biển|language=Vietnamese|work=Bao Thanh Hoa|url=https://baothanhhoa.vn/moi-truong/ap-thap-nhiet-doi-suy-yeu-thanh-hoa-van-tiep-tuc-co-mua-dien-rong-song-lon-tren-bien/139645.htm|access-date=July 10, 2021|archive-url=https://archive.today/20210710060706/https://baothanhhoa.vn/moi-truong/ap-thap-nhiet-doi-suy-yeu-thanh-hoa-van-tiep-tuc-co-mua-dien-rong-song-lon-tren-bien/139645.htm|archive-date=July 10, 2021}} About {{convert|7|hectare|acre}} of rice crops and a water pipeline in Minh Luong commune, Van Ban district were both inundated and washed away by floods in Lào Cai.{{Cite news|date=July 10, 2021|title=Họp giao ban công tác phòng, chống thiên tai ngày 10/7/2021|language=Vietnamese|work=Vietnam Disaster Management Authority|url=http://phongchongthientai.mard.gov.vn/Pages/hop-giao-ban-cong-tac-phong-chong-thien-tai-ngay-10-7-2021.aspx|access-date=July 10, 2021|archive-url=https://archive.today/20210710061612/http://phongchongthientai.mard.gov.vn/Pages/hop-giao-ban-cong-tac-phong-chong-thien-tai-ngay-10-7-2021.aspx|archive-date=July 10, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Image=In-fa 2021-07-21 0000Z.jpg

|Track=In-fa 2021 track.png

|Formed=July 15

|Dissipated=July 29

|10-min winds=85

|1-min winds=95

|Pressure=950

}}

{{main|Typhoon In-fa (2021)}}

At 06:00 UTC on July 14, the JTWC started to monitor an area of low pressure west-northwest of Guam.{{Cite JTWC|date=July 14, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific 140600Z-150600Z July 2021|designation=98W|url=https://wiki.chlod.net/jtwc/text/2021-07-14-0540-abpwweb.txt|url-status=live|archive-url=https://archive.today/20210715033229/https://wiki.chlod.net/jtwc/text/2021-07-14-0540-abpwweb.txt|archive-date=July 15, 2021|access-date=July 16, 2021}} Located in an area favorable for intensification with warm sea surface temperatures as its outflow improved, the system struggled to develop under moderate wind shear before gradually intensifying, with the agency issuing a Tropical Cyclone Formation Alert at 20:30 UTC on the next day.{{Cite JTWC|date=July 15, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans 150600Z-160600Z July 2021|designation=98W|url=https://wiki.chlod.net/jtwc/text/2021-07-15-0610-abpwweb.txt|url-status=live|archive-url=https://archive.today/20210716012439/https://wiki.chlod.net/jtwc/text/2021-07-15-0610-abpwweb.txt|archive-date=July 16, 2021|access-date=July 16, 2021}}{{Source-attribution|sentence=yes|{{Cite JTWC|date=July 15, 2021|designation=98W|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 152030Z-160600Z July 2021|url=https://wiki.chlod.net/jtwc/text/2021-07-15-2130-abpwweb.txt|url-status=live|archive-url=https://archive.today/20210716012529/https://wiki.chlod.net/jtwc/text/2021-07-15-2130-abpwweb.txt|archive-date=July 16, 2021|access-date=July 16, 2021}} }}{{Cite JTWC|date=July 15, 2021|type=tcfa|designation=98W|url=https://wiki.chlod.net/jtwc/text/2021-07-15-2120-wp9821web.txt|url-status=live|archive-url=https://archive.today/20210716012509/https://wiki.chlod.net/jtwc/text/2021-07-15-2120-wp9821web.txt|archive-date=July 16, 2021|access-date=July 16, 2021}} On July 16, the PAGASA upgraded the disturbance to a tropical depression as it entered the Philippine Area of Responsibility, assigning it the local name Fabian.{{Cite PAGASA|date=July 16, 2021|name=Fabien|intl_name=|type=tcb|no=01|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%231_fabian.pdf|url-status=live|archive-date=July 16, 2021|archive-url=https://web.archive.org/web/20210716095453/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%231_fabian.pdf}} The JMA later recognized the system as a tropical depression at 03:00 UTC on the same day,{{cite web|url=https://www.jma.go.jp/bosai/weather_map/|title=JMA Weather map|publisher=Japan Meteorological Agency|date=July 16, 2021|access-date=July 16, 2021|archive-url=https://archive.today/20210716073710/https://www.jma.go.jp/bosai/weather_map/|archive-date=July 16, 2021|language=ja}} with the JTWC doing the same at 09:00 UTC, designating it as 09W.{{Cite JTWC|date=July 16, 2021|type=warn|category=TD|designation=09W|no=1|name=Nine|url=https://wiki.chlod.net/jtwc/text/2021-07-16-0910-wp0921web.txt|url-status=live|archive-url=https://web.archive.org/web/20210716091348/https://wiki.chlod.net/jtwc/text/2021-07-16-0910-wp0921web.txt|archive-date=July 16, 2021|access-date=July 16, 2021}} On July 18 at 00:00 UTC, the JMA upgraded it to a tropical storm assigning it the name In-fa.{{Cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Tropical Cyclone Prognostic Reasoning No. 6 for Tropical Storm 2106 (In-fa)|publisher=Japan Meteorological Agency|date=July 17, 2021|access-date=July 18, 2021|archive-url=https://archive.today/20210717202538/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=July 17, 2021|url-status=live}} The JTWC also upgraded it to a tropical storm at 03:00 UTC. The system had deep flaring convection, however its low-level circulation was broad and elongated.{{Cite JTWC|date=July 19, 2021|type=prog|category=TS|designation=09W|no=8|name=In-fa|url=https://wiki.chlod.net/jtwc/prog/2021-07-18-0300-wp0921prog.txt|url-status=live|archive-date=July 19, 2021|archive-url=https://web.archive.org/web/20210719033648/https://wiki.chlod.net/jtwc/prog/2021-07-18-0300-wp0921prog.txt}} On July 18, at 00:00 UTC, the JMA upgraded the system to a severe tropical storm.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Tropical Cyclone No.11 for STS In-fa (2106)|publisher=Japan Meteorological Agency|date=July 18, 2021|access-date=July 18, 2021|archive-url=https://web.archive.org/web/20210719023619/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=July 19, 2021}}{{cite web|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|title=Tropical Cyclone Information about Severe Tropical Storm 2106 (In-fa)|publisher=Japan Meteorological Agency|date=July 18, 2021|access-date=July 18, 2021|archive-url=https://archive.today/20210719024248/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|archive-date=July 19, 2021}} In-fa started moving westwards,{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/202|title=RSMC Tropical Cyclone Prognostic Reasoning No.15 for Severe Tropical Storm 2106 (In-fa|publisher=Japan Meteorological Agency|date=July 20, 2021|access-date=July 22, 2021|archive-url=https://archive.today/20210720080429/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210720/000000/A_WTPQ30RJTD200000_C_RJTD_20210720015519_61.txt|archive-date=July 20, 2021|url-status=live}} and as it gradually strengthened, In-fa developed a formative eye on July 20, at 03:00 UTC.{{cite JTWC|date=July 20, 2021|type=prog|category=TS|designation=10W|no=16|name=In-fa|url=https://wiki.chlod.net/jtwc/prog/2021-07-20-0230-wp0921prog.txt|url-status=live|archive-date=July 20, 2021|archive-url=https://web.archive.org/web/20210720063927/https://wiki.chlod.net/jtwc/prog/2021-07-20-0230-wp0921prog.txt}} At 09:00 UTC, the JTWC declared In-fa to have strengthened into a typhoon as it had deep convection and robust outflow.{{cite JTWC|date=July 20, 2021|type=warn|category=TY|designation=10W|no=17|name=In-fa|url=https://wiki.chlod.net/jtwc/text/2021-07-20-0910-wp0921web.txt|url-status=live|archive-date=July 20, 2021|archive-url=https://archive.today/20210720092525/https://wiki.chlod.net/jtwc/text/2021-07-20-0910-wp0921web.txt}}{{cite JTWC|date=July 20, 2021|type=prog|category=TY|designation=10W|no=17|name=In-fa|url=https://wiki.chlod.net/jtwc/prog/2021-07-20-0910-wp0921prog.txt|url-status=live|archive-date=July 20, 2021|archive-url=https://archive.today/20210720092924/https://wiki.chlod.net/jtwc/prog/2021-07-20-0910-wp0921prog.txt}} The JMA also followed suit and upgraded In-fa to a typhoon at 12:00 UTC because of good upper-level outflow and higher sea surface temperatures; however, its central dense overcast was still obscure.{{Cite web|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|title=Tropical Cyclone Information about Typhoon 2106 (In-fa)|website=www.jma.go.jp|publisher=Japan Meteorological Agency|date=July 20, 2021|access-date=July 20, 2021|archive-url=https://archive.today/20210720125405/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|archive-date=July 20, 2021|url-status=live}}{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Tropical Cyclone Prognostic Reasoning No.11 For STS In-fa (2106)|publisher=Japan Meteorological Agency|date=July 20, 2021|access-date=July 20, 2021|archive-url=https://web.archive.org/web/20210719023619/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=July 19, 2021}} On the next day at 03:00 UTC, In-fa strengthened into a Category 2-equivalent typhoon as its central convection continued to deepen. The feeder bands became more compact and the eye of the typhoon became clearer and more defined.{{cite JTWC|date=July 21, 2021|type=prog|category=TY|designation=09W|name=In-fa|no=20|url=https://wiki.chlod.net/jtwc/prog/2021-07-21-0250-wp0921prog.txt|url-status=live|archive-date=July 21, 2021|archive-url=https://web.archive.org/web/20210721081954/https://wiki.chlod.net/jtwc/prog/2021-07-21-0250-wp0921prog.txt}} The JTWC assessed that it peaked as a Category 2-equivalent typhoon with maximum wind speeds of {{convert|95|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}} at 03:00 UTC the same day.{{cite JTWC|date=July 21, 2021|access-date=July 23, 2021|type=warn|designation=09W|name=In-fa|category=TY|no=20|url=https://wiki.chlod.net/jtwc/prog/2021-07-21-0250-wp0921prog.txt|url-status=live|archive-url=https://archive.today/2021.07.23-09:28:27/https://wiki.chlod.net/jtwc/prog/2021-07-21-0250-wp0921prog.txt|archive-date=July 23, 2021}} Because of dry air,{{citation needed|date=July 2021}} the JTWC later downgraded In-fa to a Category 1-equivalent typhoon at 03:00 UTC the next day despite the presence of warm sea surface temperatures and low wind shear.{{cite JTWC|date=July 23, 2021|type=warn|designation=09W|name=In-fa|no=28|category=TY|url=https://wiki.chlod.net/jtwc/prog/2021-07-23-0340-wp0921prog.txt|url-status=live|archive-date=August 24, 2023|archive-url=https://archive.today/2020.07.23-10:08:50/https://wiki.chlod.net/jtwc/prog/2021-07-23-0340-wp0921prog.txt}} On July 23 at 21:00 UTC, In-fa got further downgraded to a tropical storm by the JTWC, as its eyewall became fragmented and the deep convection was not continuous over the eye;{{cite JTWC|date=July 23, 2021|access-date=July 24, 2021|type=prog|designation=09W|name=In-fa|no=31|category=TS|url=https://wiki.chlod.net/jtwc/prog/2021-07-23-2030-wp0921prog.txt|archive-url=https://web.archive.org/web/20210724041339/https://wiki.chlod.net/jtwc/prog/2021-07-23-2030-wp0921prog.txt|archive-date=July 24, 2021}} it later re-intensified into a Category 1-equivalent typhoon again at 03:00 UTC the next day as it regained convective depths and it managed to maintain a ragged eye.{{cite JTWC|date=July 23, 2021|type=prog|designation=09W|name=In-fa|no=32|category=TY|url=https://wiki.chlod.net/jtwc/prog/2021-07-23-2030-wp0921prog.txt|archive-url=https://web.archive.org/web/20210724041339/https://wiki.chlod.net/jtwc/prog/2021-07-23-2030-wp0921prog.txt|archive-date=July 24, 2021}} At 09:00 UTC, PAGASA issued its final advisory as Typhoon In-fa moved northwards and exited the PAR.{{cite PAGASA|date=July 24, 2021|name=Fabian|intl name=In-fa|type=tcb|no=22F|category=TY|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2331_fabian%28Final%29.pdf}} On July 24, at 06:00 UTC, In-fa peaked as a typhoon with maximum 10-minute sustained wind speeds of {{convert|80|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}} and a minimum pressure of {{cvt|950|hPa|inHg|abbr=on|comma=off|sigfig=4}}, according to the JMA.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210721/180000/A_WTPQ30RJTD211800_C_RJTD_20210721195716_15.txt|title=RSMC Prognostic Reasoning No.22 for Typhoon 2106 (In-fa)|publisher=Japan Meteorological Agency|date=July 21, 2021|access-date=July 23, 2021|archive-url=https://archive.today/20210722035639/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210721/180000/A_WTPQ30RJTD211800_C_RJTD_20210721195716_15.txt|archive-date=July 22, 2021|url-status=live}} On the next day, the China Meteorological Administration (CMA) noted In-fa to have made landfall in Putuo Island at around 04:30 UTC.{{Cite web|url=http://www.cma.gov.cn/2011xwzx/2011xqxxw/2011xzytq/202107/t20210725_581620.html|title=台风"烟花"登陆浙江省舟山普陀沿海 江浙沪等地有持续强风雨-中国气象局政府门户网站|author=Hao Jing|date=July 25, 2021|access-date=July 25, 2021|archive-url=https://archive.today/20210725131850/http://www.cma.gov.cn/2011xwzx/2011xqxxw/2011xzytq/202107/t20210725_581620.html|archive-date=July 25, 2021|language=zh}} After making landfall, the JTWC downgraded it to a tropical storm at 09:00 UTC as it eye structure began to degrade.{{cite JTWC|date=July 25, 2021|access-date=July 26, 2021|type=prog|designation=09W|name=In-fa|no=37|category=TS|url=https://wiki.chlod.net/jtwc/prog/2021-07-25-0810-wp0921prog.txt|archive-url=https://web.archive.org/web/20210726025333/https://wiki.chlod.net/jtwc/prog/2021-07-25-0810-wp0921prog.txt|archive-date=July 26, 2021}} JMA later downgraded to a severe tropical storm at 12:00 UTC, because of influence of land and involvement of dry air.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210725/120000/A_WTPQ30RJTD251200_C_RJTD_20210725140918_83.txt|title=RSMC Tropical Cyclone Prognostic Reasoning No. 37 for Severe Tropical Storm 2106 (In-fa)|publisher=Japan Meteorological Agency|date=July 25, 2021|access-date=July 26, 2021|archive-url=https://archive.today/20210725152932/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210725/120000/A_WTPQ30RJTD251200_C_RJTD_20210725140918_83.txt|archive-date=July 25, 2021|url-status=live}}

{{Infobox hurricane small

|Basin=WPac

|Image=Cempaka 2021-07-20 0315Z.jpg

|Track=Cempaka 2021 track.png

|Formed=July 17

|Dissipated=July 25

|10-min winds=70

|1-min winds=80

|Pressure=980

}}

{{main|Typhoon Cempaka}}

On July 17, the JMA reported that a tropical depression had formed.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp25.rjtd..txt|title=WWJP25 RJTD 170000|publisher=Japan Meteorological Agency|date=July 17, 2021|access-date=July 17, 2021|archive-url=https://web.archive.org/web/20210717075541/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp25.rjtd..txt|archive-date=July 17, 2021}}{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 170000|publisher=Japan Meteorological Agency|date=July 17, 2021|access-date=July 17, 2021|archive-url=https://web.archive.org/web/20210717080244/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=July 17, 2021}} The JTWC later issued a TCFA for the system, as the aforementioned area of convection became more organized.{{cite JTWC|date=July 17, 2021|access-date=July 18, 2021|type=tcfa|designation=99W|url=https://wiki.chlod.net/jtwc/text/2021-07-17-2250-wp9921web.txt|archive-url=https://web.archive.org/web/20210718094658/https://wiki.chlod.net/jtwc/text/2021-07-17-2250-wp9921web.txt|archive-date=July 18, 2021|url-status=live}} By the following day, the JTWC upgraded the system to a tropical depression and designated it as 10W, with the storm possessing an improved convective structure and a defined low-level circulation.{{cite JTWC|date=July 18, 2021|type=warn|designation=10W|name=Ten|no=1|category=TD|url=https://wiki.chlod.net/jtwc/text/2021-07-18-1530-wp1021web.txt|archive-url=https://web.archive.org/web/20210718153627/https://wiki.chlod.net/jtwc/text/2021-07-18-1530-wp1021web.txt|archive-date=July 18, 2021|url-status=live}}{{cite JTWC|date=July 18, 2021|type=prog|designation=10W|name=Ten|no=1|category=TD|url=https://wiki.chlod.net/jtwc/prog/2021-07-18-1540-wp1021prog.txt|archive-url=https://web.archive.org/web/20210718162942/https://wiki.chlod.net/jtwc/prog/2021-07-18-1540-wp1021prog.txt|archive-date=July 18, 2021|url-status=live}} The JTWC upgraded the system to a tropical storm at 21:00 UTC as it had a defined low-level circulation center with improved banding structure.{{cite JTWC|date=July 18, 2021|access-date=July 19, 2021|type=prog|designation=10W|name=Ten|no=2|category=TS|url=https://wiki.chlod.net/jtwc/prog/2021-07-18-2120-wp1021prog.txt|archive-url=https://web.archive.org/web/20210719030114/https://wiki.chlod.net/jtwc/prog/2021-07-18-2120-wp1021prog.txt|archive-date=July 19, 2021|url-status=live}} At 00:00 UTC on July 19, the JMA upgraded the system to a tropical storm, assigning it the name Cempaka.{{cite web|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=61&lang=en|title=Tropical Cyclone Information for Tropical Storm 2107 (Cempaka)|website=www.jma.go.jp|publisher=Japan Meteorological Agency|date=July 19, 2021|access-date=July 19, 2021|archive-url=https://archive.today/20210719024534/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=61&lang=en|archive-date=July 19, 2021}} At 21:00 UTC, the JTWC declared Cempaka to have strengthened into a Category 1-equivalent typhoon as it developed a ragged {{cvt|15|nmi}} wide eye.{{cite JTWC|date=July 19, 2021|access-date=July 20, 2021|type=warn|designation=10W|name=Cempaka|no=6|category=TY|url=https://wiki.chlod.net/jtwc/text/2021-07-19-2100-wp1021web.txt|archive-url=https://web.archive.org/web/20210720024613/https://wiki.chlod.net/jtwc/text/2021-07-19-2100-wp1021web.txt|archive-date=July 20, 2021|url-status=live}}{{cite JTWC|date=July 19, 2021|access-date=July 20, 2021|type=prog|designation=10W|name=Cempaka|no=6|category=TY|url=https://wiki.chlod.net/jtwc/prog/2021-07-19-2140-wp1021prog.txt|archive-url=https://web.archive.org/web/20210720024524/https://wiki.chlod.net/jtwc/prog/2021-07-19-2140-wp1021prog.txt|archive-date=July 20, 2021|url-status=live}} The JMA later upgraded it to a severe tropical storm at 00:00 UTC on the next day.{{cite web|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=61&lang=en|title=Tropical Cyclone Information about Severe Tropical Storm 2107 (Cempaka)|publisher=Japan Meteorological Agency|date=July 20, 2021|access-date=July 20, 2021|archive-url=https://archive.today/20210720024112/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=61&lang=en|archive-date=July 20, 2021}} On July 20, at 06:00 UTC, Cempaka peaked as a severe tropical storm with 10-sustained maximum wind speed of {{cvt|55|kn|round=5}} with minimum pressure of {{cvt|990|hPa|inHg|sigfig=4|comma=off|abbr=on}}, according to JMA.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No.7 of Severe Tropical Storm 2107 (Cempaka)|publisher=Japan Meteorological Agency|date=July 20, 2021|access-date=July 23, 2021|archive-url=https://archive.today/20210720080312/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=July 20, 2021|url-status=live}} JTWC assessed that it peaked as a typhoon with maximum 1-minute sustained wind of {{cvt|80|kn|round=5}}.{{cite JTWC|date=July 20, 2021|access-date=July 23, 2021|type=prog|designation=10W|name=Cempaka|no=09|category=TY|url=https://wiki.chlod.net/jtwc/prog/2021-07-20-1400-wp1021prog.txt|archive-url=https://archive.today/20210723110215/https://wiki.chlod.net/jtwc/prog/2021-07-20-1400-wp1021prog.txt|archive-date=July 23, 2021|url-status=live}} Cempaka made landfall near Jiangcheng District, Yangjiang, Guangdong Province,{{cite web|url=https://www.reuters.com/business/environment/typhoon-cempaka-makes-landfall-chinas-guangdong-says-xinhua-2021-07-20/|title=Typhoon Cempaka makes landfall in China's Guangdong, says Xinhua|website=Reuters|date=July 21, 2021}} and the JTWC downgraded it to a tropical storm at 18:00 UTC the same day as its low-level circulation center became obscure.{{cite JTWC|date=July 20, 2021|access-date=July 21, 2021|type=prog|designation=10W|name=Cempaka|no=10|category=TS|url=https://wiki.chlod.net/jtwc/prog/2021-07-20-2130-wp1021prog.txt|archive-url=https://web.archive.org/web/20210721085433/https://wiki.chlod.net/jtwc/prog/2021-07-20-2130-wp1021prog.txt|archive-date=July 21, 2021|url-status=live}} The JMA also downgraded Cempaka to a tropical storm at 00:00 UTC the next day as it moved further inland and its central dense overcast disappeared.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210720/180000/A_WTPQ31RJTD201800_C_RJTD_20210720194918_58.txt|title=RSMC Tropical Cyclone Progonostic Reasoning No. 9 for Severe Tropical Storm 2107 (Cempaka)|publisher=Japan Meteorological Agency|date=July 20, 2021|access-date=July 21, 2021|archive-url=https://archive.today/20210721044542/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210720/180000/A_WTPQ31RJTD201800_C_RJTD_20210720194918_58.txt|archive-date=July 21, 2021|url-status=live}}{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210721/000000/A_WTPQ31RJTD210000_C_RJTD_20210721015719_73.txt|title=RSMC Tropical Cyclone Progonostic Reasoning No. 10 for Severe Tropical Storm 2107 (Cempaka)|publisher=Japan Meteorological Agency|date=July 20, 2021|access-date=July 21, 2021|archive-url=https://archive.today/20210721044558/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210721/000000/A_WTPQ31RJTD210000_C_RJTD_20210721015719_73.txt|archive-date=July 21, 2021|url-status=live}} At 09:00 UTC, the JTWC further downgraded Cempaka to a tropical depression as its deep convection declined; however, it still retained a well-defined wind field.{{cite JTWC|date=July 21, 2021|type=prog|designation=10W|name=Cempaka|no=12|category=TD|url=https://wiki.chlod.net/jtwc/prog/2021-07-21-0810-wp1021prog.txt|url-status=live|archive-date=July 21, 2021|archive-url=https://archive.today/20210721111751/https://wiki.chlod.net/jtwc/prog/2021-07-21-0810-wp1021prog.txt}} After moving inland, Cempaka started moving westward at 00:00 UTC on July 21 due to weak steering flow.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210721/000000/A_WTPQ31RJTD210000_C_RJTD_20210721015719_73.txt|title=RSMC Tropical Cyclone Prognostic Reasoning No.10 for Tropical Storm 2107 (Cempaka)|publisher=Japan Meteorological Agency|date=July 21, 2021|access-date=July 22, 2021|archive-url=https://archive.today/20210721044558/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210721/000000/A_WTPQ31RJTD210000_C_RJTD_20210721015719_73.txt|archive-date=July 21, 2021|url-status=live}} Remaining inland, Cempaka maintained tropical storm intensity as it continued westward, but due to unfavorable conditions over land, it weakened into a tropical depression on the next day at 00:00 UTC.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq51.rjtd..txt|title=WTPQ51 RJTD 220000|publisher=Japan Meteorological Agency|date=July 22, 2021|access-date=July 22, 2021|archive-url=https://archive.today/20210722042901/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq51.rjtd..txt|archive-date=July 22, 2021}} On July 22, at 09:00 UTC, Cempaka then moved southwards towards the Gulf of Tonkin because of the influence of the monsoonal westerlies, while maintaining its tropical depression intensity inland.{{cite JTWC|date=July 22, 2021|access-date=July 25, 2021|type=prog|designation=10W|name=Cempaka|no=16|category=TD|url=https://wiki.chlod.net/jtwc/prog/2021-07-22-0810-wp1021prog.txt|archive-url=https://web.archive.org/web/20210725123339/https://wiki.chlod.net/jtwc/prog/2021-07-22-0810-wp1021prog.txt|archive-date=July 25, 2021}} Cempaka moved southward, crossed Móng Cái, Quảng Ninh Province in Vietnam and later entered the Gulf of Tonkin at 03:00 UTC.{{cite JTWC|date=July 23, 2021|access-date=July 25, 2021|type=prog|designation=10W|name=Cempaka|no=21|category=TD|url=https://wiki.chlod.net/jtwc/text/2021-07-23-1330-wp1021web.txt|archive-url=https://web.archive.org/web/20210725130525/https://wiki.chlod.net/jtwc/text/2021-07-23-1330-wp1021web.txt|archive-date=July 25, 2021}} However, Cempaka further weakened despite the presence of warm sea surface temperatures because of high monsoonal wind shear and land interaction.{{cite JTWC|date=July 23, 2021|access-date=July 25, 2021|type=prog|designation=10W|name=Cempaka|no=19|category=TD|url=https://wiki.chlod.net/jtwc/prog/2021-07-23-0340-wp1021prog.txt|archive-url=https://web.archive.org/web/20210725130924/https://wiki.chlod.net/jtwc/prog/2021-07-23-0340-wp1021prog.txt|archive-date=July 25, 2021}}{{cite JTWC|date=July 23, 2021|access-date=July 25, 2021|type=prog|designation=10W|name=Cempaka|no=20|category=TD|url=https://wiki.chlod.net/jtwc/prog/2021-07-23-0830-wp1021prog.txt|archive-url=https://web.archive.org/web/20210725130927/https://wiki.chlod.net/jtwc/prog/2021-07-23-0830-wp1021prog.txt|archive-date=July 25, 2021}} At 15:00 UTC, the JTWC issued its final warning on the system as it became a weakly defined system with an exposed low-level circulation center over Bạch Long Vĩ Island.{{cite JTWC|date=July 23, 2021|access-date=July 25, 2021|type=warn|designation=10W|name=Cempaka|no=21|category=TD|url=https://wiki.chlod.net/jtwc/text/2021-07-23-1330-wp1021web.txt|archive-url=https://web.archive.org/web/20210725130525/https://wiki.chlod.net/jtwc/text/2021-07-23-1330-wp1021web.txt|archive-date=July 25, 2021}} On July 26 at 00:00 UTC, the JMA issued its last advisory.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210726/000000/A_WWJP27RJTD260000_C_RJTD_20210726021717_86.txt#selection-9.505-9.513|title=WWJP27 RJTD 260000|website=Japan Meteorological Agency|date=July 26, 2021|access-date=July 27, 2021|archive-url=https://archive.today/20210726075830/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210726/000000/A_WWJP27RJTD260000_C_RJTD_20210726021717_86.txt#selection-9.505-9.513|archive-date=July 26, 2021|url-status=live}}

In preparation for the tropical depression, the HKO issued a Signal No. 1 warning for Hong Kong at 13:40 UTC on July 18, which was later upgraded to a Signal No. 3 warning as Cempaka neared the Pearl River Delta. However, as it moved away from Hong Kong, the HKO downgraded it to a Signal No. 1 warning, which was later cancelled at 11:40 UTC.{{cite web|url=https://www.hko.gov.hk/en/wxinfo/currwx/tc2.htm|title=Tropical Cyclone Warning Bulletin for Tropical Depression|website=www.hko.gov.hk|publisher=Hong Kong Observatory|date=July 18, 2021|access-date=July 18, 2021|archive-url=https://archive.today/20210718145423/https://www.hko.gov.hk/en/wxinfo/currwx/tc2.htm|archive-date=July 18, 2021}}{{cite web|url=https://www.hko.gov.hk/en/wxinfo/dailywx/wxwarntoday.htm|title=Current Weather Warnings|website=www.hko.gov.hk|publisher=Hong Kong Observatory|date=July 19, 2021|access-date=July 19, 2021|archive-url=https://web.archive.org/web/20210720074244/https://www.hko.gov.hk/en/wxinfo/dailywx/wxwarntoday.htm|archive-date=July 20, 2021}}{{cite web|url=https://www.hko.gov.hk/en/wxinfo/currwx/tc2.htm|title=Tropical Cyclone Warning Bulletin for Typhoon Cempaka|website=www.hko.gov.hk|publisher=Hong Kong Observatory|date=July 20, 2021|access-date=July 20, 2021|archive-url=https://archive.today/20210720074143/https://www.hko.gov.hk/en/wxinfo/currwx/tc2.htm|archive-date=July 20, 2021}}{{cite web|url=https://www.hko.gov.hk/en/wxinfo/climat/warndb/warndba.shtml?start_ym=20210720|title=Weather Warning and Signals Record (20/Jul/2021)|website=www.hko.gov.hk|publisher=Hong Kong Observatory|date=July 20, 2021|access-date=July 20, 2021|archive-url=https://archive.today/20210720163447/https://www.hko.gov.hk/en/wxinfo/climat/warndb/warndba.shtml?start_ym=20210720|archive-date=July 20, 2021}} The CMA issued an orange alert for the southern provinces of China as Cempaka moved closer to Guangdong, China, though it was later downgraded to a blue alert as it entered the Chinese mainland.{{cite web|url=http://www.cma.gov.cn/en2014/weather/Warnings/ActiveWarnings/202107/t20210720_581073.html|title=Orange Warning of Typhoon|author=Liu Shuqiao|publisher=China Meteorological Administration|date=July 20, 2021|access-date=July 20, 2021|archive-url=https://archive.today/20210720080145/http://www.cma.gov.cn/en2014/weather/Warnings/ActiveWarnings/202107/t20210720_581073.html|archive-date=July 20, 2021}}{{cite web|url=http://www.cma.gov.cn/en2014/weather/Warnings/ActiveWarnings/202107/t20210720_581073.html|title=Blue Warning of Typhoon|author=Liu Shuqiao|publisher=China Meteorological Administration|date=July 21, 2021|access-date=July 21, 2021|archive-url=https://archive.today/20210721074213/http://www.cma.gov.cn/en2014/weather/Warnings/ActiveWarnings/202107/t20210721_581200.html|archive-date=July 21, 2021}} It was later lifted by the CMA, as the threat of Cempaka was minimal.{{citation needed|date=July 2021}} As Cempaka made landfall in Guangdong, there were reports of heavy rainfall and rough waves in the region. Over 990 flights were cancelled in Guangzhou, Shenzhen and Zhuhai.{{citation needed|date=July 2021}} The influence of Cempaka caused heavy rainfall in Henan Province, along with In-fa causing devastating floods in the region.{{Cite web|author=Jackson Dill and Shawn Deng|title=Typhoon In-fa strengthening while on track to impact Japan, Taiwan and China|url=https://www.cnn.com/2021/07/20/weather/typhoon-cempaka-in-fa-flood-china-taiwan-japan/index.html|access-date=July 21, 2021|website=CNN|date=July 20, 2021 }}

The JMA has upgraded Cempaka's intensity from Severe Tropical Storm to Typhoon in the post analysis.

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=July 22

|Dissipated=July 28

|Image=Nepartak 2021-07-27 0350Z.jpg

|Track=Nepartak 2021 track.png

|10-min winds=40

|1-min winds=45

|Pressure=990

|Type2=subtropical

}}

At 06:00 UTC on July 22, the Joint Typhoon Warning Center (JTWC) started to monitor a tropical disturbance with subtropical features along the eastern portion of a monsoon trough, located approximately {{convert|466|nmi|round=5|abbr=on}} to the north of Guam. A weak system, multispectral satellite imageries revealed that the disturbance was disorganized along the said trough, while advanced scaterrometer data showed the same feature with southerly convergent flow over the northern Mariana Islands. Environmental analysis depicted an unfavorable amount of wind shear, although the agency noted that the disturbance could form as a subtropical cyclone along the subtropical trough with the help of baroclinity.{{Cite JTWC|date=July 22, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans 220600Z-230600Z July 2021|designation=90W|url=https://wiki.chlod.net/jtwc/text/2021-07-22-0620-abpwweb.txt|archive-url=https://archive.today/20210729065825/https://wiki.chlod.net/jtwc/text/2021-07-22-0620-abpwweb.txt|archive-date=July 29, 2021|access-date=July 29, 2021}} Tracking northeastward, the system slowly organized, with a low-level circulation center developing seen on meteorological satellite imageries. The Japan Meteorological Agency (JMA) designated the disturbance as a tropical depression, seventeen hours later while the JTWC upgraded the system's potential intensification trend from "medium" to "high" and subsequently issued a Tropical Cyclone Formation Alert (TCFA) on the storm at 22:30 UTC that day.{{cite web |title=WWJP27 RJTD 221800 |url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210722/180000/A_WWJP27RJTD221800_C_RJTD_20210722201717_2.txt |publisher=Japan Meteorological Agency |access-date=July 30, 2021 |archive-url=https://archive.today/20210723034106/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210722/180000/A_WWJP27RJTD221800_C_RJTD_20210722201717_2.txt |archive-date=July 23, 2021 |date=July 22, 2021 |url-status=dead }}{{Cite JTWC|date=July 22, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued 222230Z-230600Z July 2021|designation=90W|url=https://wiki.chlod.net/jtwc/text/2021-07-23-0340-abpwweb.txt|archive-url=https://archive.today/20210730061620/https://wiki.chlod.net/jtwc/text/2021-07-23-0340-abpwweb.txt|archive-date=July 30, 2021|access-date=July 30, 2021}}{{Cite JTWC|date=July 22, 2021|type=tcfa|designation=90W|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn21.pgtw..txt|archive-url=https://archive.today/20210723034019/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn21.pgtw..txt|archive-date=July 23, 2021|access-date=July 30, 2021}} At 12:00 UTC, Dvorak intensity observations and surface wind data from satellite scatterometer confirmed that the depression further intensified to the eighth tropical storm of the season, whereupon the JMA named it as Nepartak.{{Cite web|date=July 23, 2021|title=RSMC Tropical Cyclone Prognostic Reasoning No. 3 for TS 2108 Nepartak (2108)|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-url=https://archive.today/20210723150355/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=July 23, 2021|website=Japan Meteorological Agency|access-date=July 30, 2021|url-status=live}} The JTWC, however only issued its first warning on Nepartak as Tropical Depression 11W, three hours later as its LLCC further became broad and exposed with its center remaining weakly defined while being steered on the continued direction by a north–south oriented subtropical ridge.{{Cite JTWC| date = July 23, 2021| type = warn| category = TD| designation = 11W| no = 1| name = Nepartak| url = https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt| archive-url = https://archive.today/20210723151018/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt| url-status = live| archive-date = July 23, 2021|access-date=July 30, 2021}}{{Cite JTWC| date = July 23, 2021| type = prog| category = TD| designation = 11W| no = 1| name = Nepartak| url = https://www.metoc.navy.mil/jtwc/products/wp1121prog.txt | archive-url = https://archive.today/20210723155919/https://www.metoc.navy.mil/jtwc/products/wp1121prog.txt|archive-date=July 23, 2021}} Nine hours later, the agency further upgraded the system to a subtropical storm as vigorous deep convection further became constant on the east of the still-exposed and elongated circulation center.{{Cite JTWC| date = July 23, 2021| type = prog| category = TS| designation = 11W| no = 2| name = Nepartak| url = https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210723/210000/A_WDPN33PGTW232100_C_RJTD_20210723214717_91.txt | archive-url = https://archive.today/20210724091018/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210723/210000/A_WDPN33PGTW232100_C_RJTD_20210723214717_91.txt|archive-date=July 24, 2021}}{{Cite JTWC| date = July 24, 2021| type = prog| category = TS| designation = 11W| no = 4| name = Nepartak| url = https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt | archive-url = https://archive.today/20210724092058/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt|archive-date=July 24, 2021}} By July 24, Nepartak was guided north-northeastwards by an upper-level low and a trough. Baroclinic interaction with the latter also led to the development of a large and asymmetric wind field, with the maximum sustained winds of {{cvt|35|kn|mph km/h|round=5|abbr=on}} being far from the center.{{Cite JTWC| date = July 24, 2021| type = prog| category = TS| designation = 11W| no = 5| name = Nepartak| url = https://www.metoc.navy.mil/jtwc/products/wp1121prog.txt | archive-url = https://archive.today/20210724152702/https://www.metoc.navy.mil/jtwc/products/wp1121prog.txt|archive-date=July 24, 2021}} Later, the system's core became ragged as it turned northwards and further northeast before shifting north again while remaining at that intensity. At 09:00 UTC of the next day, the JTWC noted two distinct vorticities, being spaced {{convert|350|nmi|round=5|abbr=on}} to each other, with each having an elongated circulation from the south-southwest to the north-northeast.{{Cite JTWC| date = July 24, 2021| type = prog| category = TS| designation = 11W| no = 6| name = Nepartak| url = https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210724/210000/A_WDPN33PGTW242100_C_RJTD_20210724212116_17.txt | archive-url = https://archive.today/20210725082116/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210724/210000/A_WDPN33PGTW242100_C_RJTD_20210724212116_17.txt|archive-date=July 25, 2021}}{{Source-attribution|sentence=yes|{{Cite JTWC| date = July 25, 2021| type = prog| category = TS| designation = 11W| no = 8| name = Nepartak| url =https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt | archive-url = https://archive.today/20210725092030/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt|archive-date=July 25, 2021}} }}

The intensity of Nepartak remained at {{cvt|35|kn|kph mph|round=5|abbr=on|order=out}} until 15:00 UTC on July 26, when the system slightly intensified to {{cvt|40|kn|mph km/h|round=5|abbr=on}} as it underwent a rapid structural evolution while moving west-northwestwards. At that time, the storm was now almost centered underneath an upper-level low, in which it interacted with for several days prior. Nepartak also began to accelerated as it moved poleward, while subsequently reaching its peak intensity 12 hours later, with winds of {{cvt|45|kn|mph km/h|round=5|abbr=on}} and a minimum barometric pressure of {{cvt|990|hPa|inHg|abbr=on|comma=off|sigfig=4}}.{{Cite JTWC| date = July 26, 2021| type = prog| category = TS| designation = 11W| no = 13A| name = Nepartak| url =https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210726/150000/A_WDPN33PGTW261500_C_RJTD_20210726153433_13.txt | archive-url = https://archive.today/20210726154855/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210726/150000/A_WDPN33PGTW261500_C_RJTD_20210726153433_13.txt|archive-date=July 26, 2021}}{{Cite JTWC| date = July 27, 2021| type = prog| category = TS| designation = 11W| no = 15| name = Nepartak| url =https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt | archive-url = https://archive.today/20210727035143/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt|archive-date=July 27, 2021}} As it turned towards the north, the system started to approach the Tōhoku region, and its circulation center became well-defined while located under the cold-core low, which was causing dry air intrusions within the cyclone. The system began to weaken to a low-end tropical storm before making landfall near the town of Minamisanriku in Miyagi Prefecture at 23:00 UTC as a subtropical depression.{{Cite JTWC| date = July 27, 2021| type = prog| category = TS| designation = 11W| no = 16| name = Nepartak| url =https://www.metoc.navy.mil/jtwc/products/wp1121prog.txt | archive-url = https://archive.today/20210727091823/https://www.metoc.navy.mil/jtwc/products/wp1121prog.txt|archive-date=July 27, 2021}}{{Cite JTWC| date = July 27, 2021| type = prog| category = TS| designation = 11W| no = 17| name = Nepartak| url =https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt| archive-url = https://archive.today/20210727145518/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt|archive-date=July 27, 2021}}{{Cite JTWC| date = July 28, 2021| type = prog| category = TD| designation = 11W| no = 19| name = Nepartak| url =https://www.metoc.navy.mil/jtwc/products/wp1121prog.txt| archive-url =https://archive.today/20210728043204/https://www.metoc.navy.mil/jtwc/products/wp1121prog.txt|archive-date=July 28, 2021}} As it rapidly crossed far western Honshu, its LLC became disorganized and ragged, with its convective signature collapsing as it crossed the Japanese Alps. At 15:00 UTC on July 28, the JTWC issued its final warning and bulletin on the system as it emerged over the Sea of Japan.{{Cite JTWC| date = July 28, 2021| type = prog| category = TD| designation = 11W| no = 20| name = Nepartak| url =https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt| archive-url =https://archive.today/20210728082210/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt|archive-date=July 28, 2021}}{{Cite JTWC| date = July 23, 2021| type = warn| category = TD| designation = 11W| no = 21| name = Nepartak| url = https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt| archive-url = https://archive.today/20210729031107/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt| url-status = live| archive-date = July 29, 2021|access-date=August 1, 2021}} Meanwhile, the JMA continued to monitor the remaining remnants on the area until it dissipated at 12:00 UTC on July 31.{{cite web |title=WWJP27 RJTD 311200 |url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210731/120000/A_WWJP27RJTD311200_C_RJTD_20210731141531_91.txt |publisher=Japan Meteorological Agency |access-date=August 1, 2021 |archive-url=https://archive.today/20210731144943/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210731/120000/A_WWJP27RJTD311200_C_RJTD_20210731141531_91.txt |archive-date=July 31, 2021 |date=July 31, 2021 |url-status=dead }}

The system was the first tropical cyclone to make landfall in any part of Miyagi Prefecture since reliable records began in 1951.{{Cite web|last=Traylor|first=Daniel|date=July 28, 2021|title=Miyagi sees first tropical storm landfall on record as Nepartak crosses Honshu|url=https://www.japantimes.co.jp/news/2021/07/28/national/nepartak-miyagi-landfall/|access-date=August 4, 2021|website=The Japan Times|language=en-US}} As Nepartak was anticipated to bring bad weather in the midst of the 2020 Summer Olympics, the rowing competitions were rescheduled.{{Cite web|last=日本放送協会|title=オリンピック ボート 台風8号影響で競技は28日以降に延期 (Competition postponed after 28th due to Olympic boat typhoon No. 8)|url=https://www3.nhk.or.jp/news/html/20210725/k10013159271000.html|access-date=July 28, 2021|website=NHKニュース}}{{Cite web|title=Olympic Rowing Competition Postponed Due to Tropical Storm Approaching Japan|url=https://www.nbcnewyork.com/news/sports/tokyo-summer-olympics/olympic-rowing-competition-postponed-due-to-tropical-storm-approaching-japan/3175678/|access-date=July 28, 2021|website=NBC New York|date=July 26, 2021 |language=en-US}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=August 2

|Dissipated=August 6

|Image=12W 2021-08-02 0235Z.jpg

|Track=12W 2021 track.png

|10-min winds=30

|1-min winds=35

|Pressure=1000

}}

On August 1, the JTWC issued a TCFA for a disturbance in the open western Pacific as it had an ill-defined low-level circulation center and deep convection.{{cite JTWC|date=August 1, 2021|access-date=August 2, 2021|type=tcfa|designation=98W|url=https://www.metoc.navy.mil/jtwc/products/wp9821web.txt|url-status=dead|archive-date=August 2, 2021|archive-url=https://archive.today/20210802005659/https://www.metoc.navy.mil/jtwc/products/wp9821web.txt}} On the next day, at 00:00 UTC, the JMA recognized it as a tropical depression as it was located near Minami-Tori-shima. It was moving northwards at {{cvt|10|kn}}.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210802/000000/A_WWJP27RJTD020000_C_RJTD_20210802022017_14.txt|title=WWJP27 RJTD 020000|publisher=Japan Meteorological Agency|date=August 2, 2021|access-date=August 2, 2021|archive-url=https://archive.today/20210802023040/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210802/000000/A_WWJP27RJTD020000_C_RJTD_20210802022017_14.txt|archive-date=August 2, 2021|url-status=live}} A few hours later, the JTWC upgraded the system to a tropical depression, giving it the designation 12W. At that time, the LLC of the storm remained exposed and its strongest convection or thunderstorms were displaced to the west.{{Cite JTWC| date = August 2, 2021| type = prog| category = TD| name=Twelve| designation = 12W| no = 1| url = https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt | archive-url = https://archive.today/20210802105053/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=August 2, 2021}} A deep-layered subtropical ridge to the east guided the depression to move to the north-northwest while being near from a monsoon gyre. Despite being located in a favorable environment for additional strengthening, another system to the south slowly interacted with the depression, which weakened the storm's intensity. It reached its peak intensity that day, with winds of {{cvt|30|kn|kph mph|round=5|abbr=on|order=out}} in the estimates of the JMA and the JTWC.{{Cite JTWC| date = August 2, 2021| type = prog| category = TD| designation = 12W| no = 2| name=Twelve| url = https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210802/150000/A_WDPN31PGTW021500_C_RJTD_20210802143244_12.txt | archive-url = https://archive.today/20210802145139/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210802/150000/A_WDPN31PGTW021500_C_RJTD_20210802143244_12.txt|archive-date=August 2, 2021}}{{cite web |title=WWJP27 RJTD 020000 |url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210802/000000/A_WWJP27RJTD020000_C_RJTD_20210802022017_14.txt |publisher=Japan Meteorological Agency |access-date=August 4, 2021 |archive-url=https://archive.today/20210802023040/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210802/000000/A_WWJP27RJTD020000_C_RJTD_20210802022017_14.txt |archive-date=August 2, 2021 |date=August 2, 2021|url-status=dead }} By August 3, the JTWC downgraded 12W to a disturbance as its structure deteriorated;{{Cite JTWC|date=August 3, 2021|type=warn|category=TS|designation=12W|no=5|name=Twelve|url=https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210803/090000/A_WTPN31PGTW030900_C_RJTD_20210803081917_31.txt|archive-url=https://archive.today/20210803130210/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210803/090000/A_WTPN31PGTW030900_C_RJTD_20210803081917_31.txt|url-status=dead|archive-date=August 3, 2021|access-date=March 22, 2022}} the agency upgraded it back to a tropical depression a day later.{{Cite web |title=bwp122021.dat |url=https://www.nrlmry.navy.mil/atcf_web/docs/tracks/2021/bwp122021.dat |archive-url=https://web.archive.org/web/20220419222925/https://www.nrlmry.navy.mil/atcf_web/docs/tracks/2021/bwp122021.dat |url-status=dead |archive-date=April 19, 2022 |access-date=March 22, 2022 |website=United States Naval Research Laboratory}} The system's LLC then became fully exposed,{{Cite JTWC|date=August 5, 2021|type=prog|category=TD|designation=12W|no=9|name=Twelve|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn34.pgtw..txt|archive-url=https://archive.today/20210805145710/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn34.pgtw..txt|url-status=dead|archive-date=August 5, 2021|access-date=March 22, 2022}} and on August 6, both the JTWC and the JMA assessed that 12W had dissipated.{{Cite web |date=August 6, 2021 |title=Warning and Summary 060600 |url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210806/060000/A_WWJP27RJTD060600_C_RJTD_20210806082717_73.txt |url-status=dead |archive-url=https://archive.today/20210806101736/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210806/060000/A_WWJP27RJTD060600_C_RJTD_20210806082717_73.txt |archive-date=August 6, 2021 |access-date=March 22, 2022 |website=Japan Meteorological Agency}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=August 2

|Dissipated=August 9

|Image=Lupit 2021-08-08 0205Z.jpg

|Track=Lupit 2021 track.png

|10-min winds=45

|1-min winds=45

|Pressure=984

}}

{{main|Tropical Storm Lupit (2021)}}

On August 2, the JMA noted a tropical depression near Zhanjiang had formed.{{Cite web|date=August 2, 2021|title=WWJP27 RJTD 040600|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|url-status=live|archive-url=https://archive.today/20210802105009/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=August 2, 2021|access-date=August 4, 2021|website=|publisher=Japan Meteorological Agency}} Soon afterwards, the JTWC issued a TCFA on the disturbance situated approximately 153 nm west-southwest of Hong Kong.{{Cite JTWC| access-date = August 4, 2021|date=August 2, 2021|archive-date=August 2, 2021| type = tcfa| designation = 90W| url = https://www.metoc.navy.mil/jtwc/products/abpwweb.txt | archive-url = https://archive.today/20210802144539/https://www.metoc.navy.mil/jtwc/products/wp9021web.txt}} On the same day at 21:00 UTC, the JTWC assessed the system as a tropical depression and accordingly designated it as 13W.{{Cite web|date=August 2, 2021|title=Tropical Depression 13W (Thirteen) Warning NN01|url=https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210802/210000/A_WTPN32PGTW022100_C_RJTD_20210802212318_78.txt|url-status=live|archive-url=https://archive.today/20210804095730/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210802/210000/A_WTPN32PGTW022100_C_RJTD_20210802212318_78.txt|archive-date=August 4, 2021|access-date=August 4, 2021|website=United States Joint Typhoon Warning Center}} Twenty-four hours later, the agency upgraded the system to a tropical storm.{{Cite web|date=August 3, 2021|title=Tropical Storm 13W (Thirteen) Warning NR 005|url=https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210803/210000/A_WTPN32PGTW032100_C_RJTD_20210803200830_1.txt|url-status=live|archive-url=https://archive.today/20210804053952/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210803/210000/A_WTPN32PGTW032100_C_RJTD_20210803200830_1.txt|archive-date=August 4, 2021|access-date=August 4, 2021|website=United States Joint Typhoon Warning Center}} On August 4 at 12:00 UTC, the JMA followed suit and designated the system as a tropical storm, assigning it the name Lupit.{{Cite web|date=August 4, 2021|title=Japan Meteorological Agency Tropical Cyclone Information|url=https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|archive-url=https://archive.today/20210804050735/https://www.data.jma.go.jp/multi/cyclone/cyclone_detail.html?id=60&lang=en|archive-date=August 4, 2021|access-date=August 4, 2021|website=Japan Meteorological Agency}} A day later at 03:20 UTC, it made landfall over Nan'ao County in Shantou, Guangdong Province.{{citation needed|date=August 2021}} At 08:50 UTC, it made another landfall over Dongshan County in Zhangzhou, Fujian Province.{{cite web|url=http://www.xinhuanet.com/english/2021-08/05/c_1310110136.htm|date=August 5, 2021|title=1st LD-Writethru: Typhoon Lupit makes second landfall in southeast China's Fujian}} On August 7, it headed eastward and briefly entered the PAR, and was named Huaning by PAGASA.{{cite tweet|author=Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA)|link=https://twitter.com/dost_pagasa/status/1423805081879674883|access-date=August 7, 2021|title=At 5:00 AM today, Tropical Storm LUPIT entered the Philippine Area of Responsibility and was assigned the local name #HuaningPH. Tropical Cyclone Bulletins will be issued beginning at 11:00 AM today.|number=1423805081879674883|user=PAGASA}} On August 8, at 18:00 UTC, Lupit peaked as a tropical storm with maximum 10-minute sustained winds of {{cvt|45|kn|round=5}} and minimum pressure of {{cvt|985|mb|inHg|sigfig=4|abbr=on|comma=off}}.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Prognostic Reasoning No. 24 for Tropical Storm 2109 (Lupit)|publisher=Japan Meteorological Agency|date=August 8, 2021|access-date=August 9, 2021|archive-url=https://archive.today/20210809022446/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=August 9, 2021|url-status=live}} Maximum 1-minute sustained speed of Lupit was {{cvt|45|kn|round=5}}.{{cite JTWC|date=August 9, 2021|type=warn|designation=13W|name=Lupit|no=26|category=TS|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn32.pgtw..txt|url-status=live|archive-date=August 9, 2021|archive-url=https://archive.today/20210809030911/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn32.pgtw..txt}} On August 9, at 00:00 UTC, the JMA issued its final warning, as it completed its extratropical transition.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|title=RSMC Tropical Advisory|publisher=Japan Meteorological Agency|date=August 9, 2021|access-date=August 9, 2021|archive-url=https://archive.today/20210809022426/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|archive-date=August 9, 2021|url-status=live}} At 21:00 UTC, the JTWC followed and issued its final warning.{{cite JTWC|date=August 9, 2021|access-date=August 10, 2021|type=warn|designation=13W|name=Lupit|category=TS|no=29|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn32.pgtw..txt|archive-url=https://archive.today/20210810030353/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn32.pgtw..txt|archive-date=August 10, 2021}}

Four were reported dead and one were missing due to Lupit in Taiwan; two drowned in Ren'ai, Nantou when they were washed away by a stream on August 6, one when a teenager fell into the Zengwen Reservoir on August 11 while getting a phone that he dropped on the area; his body were recovered on the next day by the authorities.{{Cite news|date=2021-08-06|title=夫妻到仁愛鄉德魯灣橋下捕魚 失足落水雙亡|language=Chinese|work=Central News Agency|url=https://www.cna.com.tw/news/asoc/202108060335.aspx|access-date=2021-08-12|archive-date=2021-08-06|archive-url=https://web.archive.org/web/20210806145655/https://www.cna.com.tw/news/asoc/202108060335.aspx|url-status=live}}{{Cite news|date=2021-08-12|title=男研究生掉落曾文水庫 警消搜救尚無所獲|language=Chinese|work=Central News Agency|url=https://www.cna.com.tw/news/firstnews/202108120096.aspx|access-date=2021-08-13|archive-date=2021-08-12|archive-url=https://web.archive.org/web/20210812054743/https://www.cna.com.tw/news/firstnews/202108120096.aspx|url-status=live}}{{Cite news|last=Charlier|first=Philip|date=2021-08-12|title=Body of graduate student found in flooded pavilion at scenic reservoir|work=Taiwan English News|url=https://taiwanenglishnews.com/body-of-graduate-student-found-in-flooded-pavilion-at-scenic-reservoir/|access-date=2021-08-13|archive-date=2021-08-12|archive-url=https://web.archive.org/web/20210812114555/https://taiwanenglishnews.com/body-of-graduate-student-found-in-flooded-pavilion-at-scenic-reservoir/|url-status=live}} A man whose jogging in Anping Harbor was killed as he was smashed by a large wave into a seawall in the said area on August 7, while his two friends were injured.{{Cite news|last=Charlier|first=Philip|date=2021-08-07|title=Big wave hits joggers on Tainan City coast leaving one dead, one injured|work=Taiwan English News|url=https://taiwanenglishnews.com/big-wave-hits-joggers-on-tainan-city-coast-leaving-one-dead-one-injured/|access-date=2021-08-13|archive-date=2021-08-07|archive-url=https://web.archive.org/web/20210807071006/https://taiwanenglishnews.com/big-wave-hits-joggers-on-tainan-city-coast-leaving-one-dead-one-injured/|url-status=live}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=August 3

|Dissipated=August 10

|Image=Mirinae 2021-08-08 0345Z.jpg

|Track=Mirinae 2021 track.png

|10-min winds=50

|1-min winds=55

|Pressure=980

}}

On August 3, at 18:00 UTC, the JMA issued a tropical cyclone advisory for a tropical depression which was located off the east coast of Taiwan and north of the Philippines.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq51.rjtd..txt|title=RSMC Tropical Cyclone Advisory|publisher=Japan Meteorological Agency|date=August 3, 2021|access-date=August 5, 2021|archive-url=https://archive.today/20210803213850/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq51.rjtd..txt|archive-date=August 3, 2021|url-status=live}} The JMA later issued its first prognostic reasoning at the same time, stating that clusters of convective bursts were scattered around the low-level circulation.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Tropical Cyclone Prognostic Reasoning No. 1 for Tropical Depression located at 23.6N 125.2E|publisher=Japan Meteorological Agency|date=August 3, 2021|access-date=August 5, 2021|archive-url=https://archive.today/20210803213858/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=August 3, 2021|url-status=live}} At 22:00 UTC, the same day, the JTWC issued a TCFA for the system, as it had a consolidating low-level circulation, and it was located in a very conductive environment with high sea surface temperatures and low to moderate vertical wind shear.{{cite JTWC|date=August 3, 2021|access-date=August 5, 2021|type=tcfa|designation=97W|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn21.pgtw..txt|archive-url=https://archive.today/20210803224425/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn21.pgtw..txt|archive-date=August 3, 2021}} On the next day, at 03:00 UTC, the PAGASA recognized it as a tropical depression and named it Gorio, as it was located inside the PAR.{{cite PAGASA|date=August 4, 2021|access-date=August 5, 2021|name=Gorio|intl name=|type=tcb|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%231_gorio.pdf}} At 06:00 UTC, the JTWC did the same and designated it as 14W, as satellite imagery showed a fully exposed mesovortex.{{cite JTWC|date=August 4, 2021|access-date=August 5, 2021|type=warn|designation=14W|name=Fourteen|no=1|category=TD|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-url=https://archive.today/20210804094114/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-date=August 4, 2021}}{{cite JTWC|date=August 4, 2021|access-date=August 5, 2021|type=prog|designation=14W|name=Fourteen|no=1|category=TD|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-url=https://archive.today/20210804094120/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=August 4, 2021}} On August 5, at 06:00 UTC, the JMA upgraded it to a tropical storm, naming it as Mirinae. Clusters of convective bursts were gathering around the center with a curved manner, with Mirinae having distinct anticyclonic outflow.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210805/060000/A_WTPQ31RJTD050600_C_RJTD_20210805081317_45.txt|title=RSMC Prognostic Reasoning No.7 for Tropical Storm 2110 (Mirinae)|publisher=Japan Meteorological Agency|date=August 5, 2021|access-date=August 5, 2021|archive-url=https://archive.today/20210805093439/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210805/060000/A_WTPQ31RJTD050600_C_RJTD_20210805081317_45.txt|archive-date=August 5, 2021|url-status=live}} At 15:00 UTC, the JTWC followed and upgraded it to a tropical storm, as the storm developed a partially exposed low-level circulation center. Flaring convection was present, though it was affected by moderate westerly wind shear.{{cite JTWC|date=August 5, 2021|access-date=August 6, 2021|type=warn|designation=14W|name=Mirinae|no=6|category=TS|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-url=https://archive.today/20210805145915/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-date=August 5, 2021}}{{cite JTWC|date=August 5, 2021|access-date=August 6, 2021|type=prog|designation=14W|name=Mirinae|no=6|category=TS|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-url=https://archive.today/20210805151902/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=August 5, 2021}} On August 7, at 18:00 UTC, Mirinae peaked as a tropical storm with maximum 10-sustained wind speed of {{cvt|50|kn|round=5}} and minimum barometric pressure of {{cvt|980|mb|inHg|sigfig=4|abbr=on|comma=off}}.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210807/180000/A_WTPQ31RJTD071800_C_RJTD_20210807192631_30.txt|title=RSMC Prognostic Reasoning No. 17 for Tropical Storm 2110 (Mirinae)|publisher=Japan Meteorological Agency|date=August 7, 2021|access-date=August 10, 2021|archive-url=https://archive.today/20210808092742/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210807/180000/A_WTPQ31RJTD071800_C_RJTD_20210807192631_30.txt|archive-date=August 8, 2021|url-status=live}} Maximum 1-minute sustained wind speed of Mirinae was {{cvt|55|kn|round=5}}.{{cite JTWC|date=August 8, 2021|access-date=August 10, 2021|type=warn|designation=14W|name=Mirinae|category=TS|no=19|url=https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210808/210000/A_WTPN31PGTW082100_C_RJTD_20210808211318_80.txt|url-status=live|archive-date=August 9, 2021|archive-url=https://archive.today/20210809030534/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210808/210000/A_WTPN31PGTW082100_C_RJTD_20210808211318_80.txt}} On August 9, at 09:00 UTC, the JTWC issued its final warning for the system.{{cite JTWC|date=August 9, 2021|access-date=August 10, 2021|type=warn|designation=14W|name=Mirinae|category=TS|no=21|url=https://www.metoc.navy.mil/jtwc/products/wp1421web.txt|url-status=dead|archive-date=August 9, 2021|archive-url=https://archive.today/20210809091543/https://www.metoc.navy.mil/jtwc/products/wp1421web.txt}} The JMA later issued its last warning on the next day at 00:00 UTC, as it became an extratropical cyclone.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq51.rjtd..txt|title=RSMC Tropical Cyclone Advisory|publisher=Japan Meteorological Agency|date=August 10, 2021|access-date=August 10, 2021|archive-url=https://archive.today/20210810025953/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq51.rjtd..txt|archive-date=August 10, 2021|url-status=live}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=August 3

|Dissipated=August 8

|Image=Nida 2021-08-06 0040Z.jpg

|Track=Nida 2021 track.png

|10-min winds=55

|1-min winds=55

|Pressure=992

}}

On August 3, at 06:00 UTC, the JMA noted a tropical depression north of the Mariana Islands which was moving northwards at {{cvt|10|kn}}.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210803/060000/A_WWJP27RJTD030600_C_RJTD_20210803081804_99.txt|title=WWJP27 RJTD 030600|publisher=Japan Meteorological Agency|date=August 3, 2021|access-date=August 6, 2021|archive-url=https://archive.today/20210803125506/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210803/060000/A_WWJP27RJTD030600_C_RJTD_20210803081804_99.txt|archive-date=August 3, 2021|url-status=live}} At 03:00 UTC, the next day, the JTWC issued a TCFA for the system. By that time, it had developed a partially obscured low-level circulation center.{{cite JTWC|date=August 3, 2021|access-date=August 6, 2021|type=tcfa|designation=99W|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn22.pgtw..txt|url-status=live|archive-date=August 4, 2021|archive-url=https://archive.today/20210804094316/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn22.pgtw..txt}} At 15:00 UTC, the JTWC recognized it as a tropical depression, designating it as 15W.{{cite JTWC|date=August 4, 2021|access-date=August 6, 2021|type=warn|designation=15W|name=Fifteen|no=1|category=TD|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt|url-status=live|archive-date=August 4, 2021|archive-url=https://archive.today/20210804154038/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt}} On August 5, 03:00 UTC, the JTWC upgraded it to a tropical storm, as its low-level circulation center became more defined.{{cite JTWC|date=August 5, 2021|access-date=August 6, 2021|type=warn|designation=15W|name=Fifteen|no=3|category=TS|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt|url-status=live|archive-date=August 5, 2021|archive-url=https://archive.today/20210805032638/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt}}{{cite JTWC|date=August 5, 2021|access-date=August 6, 2021|type=prog|designation=15W|name=Fifteen|no=3|category=TS|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt|url-status=live|archive-date=August 5, 2021|archive-url=https://archive.today/20210805032645/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt}} Three hours later, the JMA followed and named it Nida. Satellite imagery showed that convective bursts were organized into a curved band and that the system was exhibiting good anticyclone outflow.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210805/060000/A_WTPQ32RJTD050600_C_RJTD_20210805084316_22.txt|title=RSMC Prognostic Reasoning No. 1 for Tropical Storm 2111 (Nida)|publisher=Japan Meteorological Agency|date=August 5, 2021|access-date=August 6, 2021|archive-url=https://archive.today/20210805093449/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210805/060000/A_WTPQ32RJTD050600_C_RJTD_20210805084316_22.txt|archive-date=August 5, 2021|url-status=live}} On August 6, at 18:00 UTC, the JMA upgraded it to a severe tropical storm, as it had distinct anticyclonic outflow.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210806/180000/A_WTPQ32RJTD061800_C_RJTD_20210806200418_49.txt|title=RSMC Prognostic Reasoning No. 7 for Severe Tropical Storm 2111 (Nida)|publisher=Japan Meteorological Agency|date=August 6, 2021|access-date=August 9, 2021|archive-url=https://archive.today/20210807102050/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210806/180000/A_WTPQ32RJTD061800_C_RJTD_20210806200418_49.txt|archive-date=August 7, 2021|url-status=live}} Nida then started moving eastwards at 6:00 UTC the next day, because of a mid-level subtropical high-pressure area along with the westerlies.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210807/060000/A_WTPQ32RJTD070600_C_RJTD_20210807080716_56.txt|title=RSMC Prognostic Reasoning No. 9 for Severe Tropical Storm 2111 (Nida)|publisher=Japan Meteorological Agency|date=August 7, 2021|access-date=August 9, 2021|archive-url=https://archive.today/20210807102106/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210807/060000/A_WTPQ32RJTD070600_C_RJTD_20210807080716_56.txt|archive-date=August 7, 2021|url-status=live}} On August 7, at 09:00 UTC, the JTWC issued the last advisory for the system, as its low-level circulation center was partly exposed due to the westerlies inflicting shear upon the storm.{{cite JTWC|date=August 7, 2021|access-date=August 9, 2021|type=warn|designation=15W|name=Fifteen|no=12|category=TS|url=https://www.metoc.navy.mil/jtwc/products/wp1521web.txt|url-status=dead|archive-date=August 7, 2021|archive-url=https://archive.today/20210807093719/https://www.metoc.navy.mil/jtwc/products/wp1521web.txt}} However, the JMA continued to publish bulletins for the system. Nida continued its trajectory. On August 7, 12:00 UTC, the JMA downgraded it to a tropical storm due to shear and a generally less conductive environment.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq32.rjtd..txt|title=RSMC Prognostic Reasoning No. 10 for Tropical Storm 2111 (Nida)|publisher=Japan Meteorological Agency|date=August 7, 2021|access-date=August 9, 2021|archive-url=https://archive.today/20210807143423/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq32.rjtd..txt|archive-date=August 7, 2021|url-status=live}} The JMA further downgraded it to an extratropical low at 00:00 UTC the next day as it completed its extratropical transition.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq52.rjtd..txt|title=RSMC Tropical Cyclone Advisory|publisher=Japan Meteorological Agency|date=August 9, 2021|access-date=August 9, 2021|archive-url=https://archive.today/20210808030526/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq52.rjtd..txt|archive-date=August 8, 2021|url-status=live}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=August 10

|Dissipated=August 23

|Image=Omais 2021-08-21 0303Z.jpg

|Track=Omais 2021 track.png

|10-min winds=45

|1-min winds=55

|Pressure=994

}}

On August 6, the Central Pacific Hurricane Center (CPHC) first noted an area of disturbed weather positioned around {{cvt|1000|mi|round=5}} south-southwest of Honolulu.{{cite web|url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?current_issuance=202108061541&basin=cpac&fdays=5|title=Five-Day Graphic Tropical Weather Outlook|website=nhc.noaa.gov|author=Jon Jelsema|publisher=Central Pacific Hurricane Center|location=Honolulu, Hawaii|date=August 6, 2021|access-date=August 10, 2021|language=en-US}} Four days later, the low-pressure area crossed the International Date Line, and on August 10, at 06:00 UTC, the JMA declared it as a tropical depression as it was located northeast of Ratak.{{cite web|url=https://www.nhc.noaa.gov/archive/xgtwo/gtwo_archive.php?basin=cpac&fdays=5¤t_issuance=202108100122|title=Five-Day Graphic Tropical Weather Outlook|website=nhc.noaa.gov|author=Tina Stall|publisher=Central Pacific Hurricane Center|location=Honolulu, Hawaii|date=August 10, 2021|access-date=August 10, 2021|language=en-US}}{{cite web |title=WWJP27 RJTD 100600 |url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210810/060000/A_WWJP27RJTD100600_C_RJTD_20210810081617_21.txt |publisher=Japan Meteorological Agency |access-date=10 August 2021 |archive-url=https://archive.today/20210810084029/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210810/060000/A_WWJP27RJTD100600_C_RJTD_20210810081617_21.txt |archive-date=August 10, 2021 |date=10 August 2021 |url-status=live }} By 13:00 UTC, the JTWC issued a TCFA for the system as satellite imagery showed it had developed a well-defined low-level circulation.{{Cite JTWC| date = August 10, 2021| type = tcfa| designation = 91C| url = https://www.metoc.navy.mil/jtwc/products/cp9121web.txt | url-status = dead| archive-date = August 10, 2021| archive-url = https://archive.today/20210810084916/https://www.metoc.navy.mil/jtwc/products/cp9121web.txt}} At 15:00 UTC, the JTWC recognized it as a tropical depression and designated it as 16W as satellite imagery depicted developing spiral bands and a defined low-level circulation center.{{cite JTWC|date=August 10, 2021|access-date=August 11, 2021|type=warn|designation=16W|name=Sixteen|category=TD|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-url=https://archive.today/20210810144948/https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-date=August 10, 2021}}{{cite JTWC|date=August 10, 2021|access-date=August 11, 2021|type=prog|designation=16W|name=Sixteen|category=TD|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp1621prog.txt|archive-url=https://archive.today/20210810145150/https://www.metoc.navy.mil/jtwc/products/wp1621prog.txt|archive-date=August 10, 2021}} The system briefly became a tropical storm;{{cite JTWC|date=August 13, 2021|type=warn|designation=16W|name=Sixteen|category=TS|no=11|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-url=https://archive.today/20210813041931/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-date=August 13, 2021}} However, at 21:00 UTC, the JTWC downgraded it to a tropical depression{{cite JTWC|date=August 13, 2021|access-date=August 14, 2021|type=warn|designation=16W|name=Sixteen|category=TD|no=14|url=https://wiki.chlod.net/jtwc/text/2021-08-13-2100-wp1621web.txt|archive-url=https://archive.today/20210814030045/https://wiki.chlod.net/jtwc/text/2021-08-13-2100-wp1621web.txt|archive-date=August 14, 2021}} as its convection struggled to organize itself.{{cite JTWC|date=August 13, 2021|access-date=August 14, 2021|type=prog|designation=16W|name=Sixteen|category=TD|no=14|url=https://wiki.chlod.net/jtwc/prog/2021-08-13-2120-wp1621prog.txt|archive-url=https://archive.today/20210814030508/https://wiki.chlod.net/jtwc/prog/2021-08-13-2120-wp1621prog.txt|archive-date=August 14, 2021}} It regained its intensity at 09:00 UTC the next day{{cite JTWC|date=August 14, 2021|type=warn|designation=16W|name=Sixteen|category=TS|no=16|url=https://wiki.chlod.net/jtwc/text/2021-08-14-0820-wp1621web.txt|url-status=live|archive-date=August 14, 2021|archive-url=https://archive.today/20210814093539/https://wiki.chlod.net/jtwc/text/2021-08-14-0820-wp1621web.txt}} as its convection became more organized. Satellite imagery also continued to indicate the presence of a well-defined low-level circulation center.{{cite JTWC|date=August 14, 2021|type=prog|designation=16W|name=Sixteen|category=TS|no=16|url=https://wiki.chlod.net/jtwc/prog/2021-08-14-0840-wp1621prog.txt|url-status=live|archive-date=August 14, 2021|archive-url=https://web.archive.org/web/20210814094132/https://wiki.chlod.net/jtwc/prog/2021-08-14-0840-wp1621prog.txt}} It was downgraded to a tropical depression again on the next day{{cite JTWC|date=August 15, 2021|access-date=August 16, 2021|type=warn|designation=16W|name=Sixteen|category=TD|no=19|url=https://wiki.chlod.net/jtwc/text/2021-08-15-0200-wp1621web.txt|archive-url=https://web.archive.org/web/20210816052157/https://wiki.chlod.net/jtwc/text/2021-08-15-0200-wp1621web.txt|archive-date=August 16, 2021}} as its low-level circulation center became less defined.{{cite JTWC|date=August 15, 2021|access-date=August 16, 2021|type=prog|designation=16W|name=Sixteen|category=TD|no=19|url=https://wiki.chlod.net/jtwc/prog/2021-08-15-0240-wp1621prog.txt|archive-url=https://web.archive.org/web/20210816052159/https://wiki.chlod.net/jtwc/prog/2021-08-15-0240-wp1621prog.txt|archive-date=August 16, 2021}} On August 16, at 00:00 UTC, the JMA issued its final advisory for the system, losing its tropical cyclone characteristics because of unfavorable conditions.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Prognostic Reasoning No. 5 for the Tropical Depression located at 14.0N 152.0E|publisher=Japan Meteorological Agency|date=August 16, 2021|access-date=August 16, 2021|archive-url=https://archive.today/20210816023936/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=August 16, 2021|url-status=live}} Later at 00:00 UTC, the next day, the JMA started tracking the system again.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210817/000000/A_WWJP90RJTD170000_C_RJTD_20210817022416_3.txt|title=WWJP90 RJTD 170000|publisher=Japan Meteorological Agency|date=August 17, 2021|access-date=August 17, 2021|archive-url=https://archive.today/20210817040327/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210817/000000/A_WWJP90RJTD170000_C_RJTD_20210817022416_3.txt|archive-date=August 17, 2021}} At 09:00 UTC, the JTWC issued its final advisory as the system's convection became further disorganized despite the presence of a marginally favorable environment.{{cite JTWC |type=warn|designation=16W|name=Sixteen |category=TD|no=28|url=https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|date= 2021-08-17|archive-url=https://web.archive.org/web/20210817000000/https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-date=August 17, 2021|access-date=April 5, 2022}} [https://wiki.chlod.net/jtwc/text/2021-08-17-0800-wp1621web.txt Alt URL] At 19:30 UTC on August 18, the JTWC issued a TCFA for its remnants as its low-level circulation center improved significantly.{{cite JTWC|type=tcfa|designation=16W |date=2021-08-18 |url=https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-url=https://web.archive.org/web/20210817000000/https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-date=August 17, 2021|access-date=April 5, 2022}} [https://wiki.chlod.net/jtwc/text/2021-08-18-2000-wp1621web.txt Alt URL] On August 19, the system was upgraded by PAGASA to a tropical depression, and a few hours later, it received the local name Isang as it entered the Philippine Area of Responsibility.{{Cite tweet|number=1428185011040047105|user=dost_pagasa|title=At 10:00 AM today, the tropical depression east of Luzon entered the Philippine Area of Responsibility and was assigned the local name #IsangPH. Tropical Cyclone Bulletins will be issued beginning at 11:00 AM today.|author=PAGASA-DOST}} At 15:00 UTC, the system was re-upgraded to a tropical depression by the JTWC,{{cite JTWC|date=August 19, 2021|access-date=August 21, 2021|type=warn|designation=16W|name=Sixteen|category=TD|no=29|url=https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-url=https://web.archive.org/web/20210819000000/https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-date=August 19, 2021}} [https://wiki.chlod.net/jtwc/text/2021-08-19-1430-wp1621web.txt Alt URL] as its deep convection started to become more organized over the low-level center.{{cite JTWC|date=August 19, 2021|access-date=August 21, 2021|type=prog|designation=16W|name=Sixteen|category=TD|no=29|url=https://www.metoc.navy.mil/jtwc/products/wp1621prog.txt|archive-url=https://web.archive.org/web/20210819000000/https://www.metoc.navy.mil/jtwc/products/wp1621prog.txt|archive-date=August 19, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-08-19-1440-wp1621prog.txt Alt URL] On August 20, at 12:00 UTC, the JMA upgraded to a tropical storm, naming it as Omais. Favorable conditions like high sea-surface temperatures, high tropical cyclone heat potential, and low wind shear helped it to develop over the past few hours.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210820/120000/A_WTPQ30RJTD201200_C_RJTD_20210820135704_98.txt|title=RSMC Prognostic Reasoning No. 2 for Tropical Storm 2112 (Omais)|publisher=Japan Meteorological Agency|date=August 20, 2021|access-date=August 21, 2021|archive-url=https://archive.today/20210820140954/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210820/120000/A_WTPQ30RJTD201200_C_RJTD_20210820135704_98.txt|archive-date=August 20, 2021}} The JTWC did the same thing at 21:00 UTC, the same day.{{cite JTWC|date=August 20, 2021|access-date=August 24, 2021|type=warn|designation=16W|name=Omais|category=TD|no=34|url=https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-url=https://web.archive.org/web/20210820000000/https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-date=August 20, 2021}} [https://wiki.chlod.net/jtwc/text/2021-08-20-2050-wp1621web.txt Alt URL] At 18:00 UTC the next day, the JMA upgraded it to a severe tropical storm as satellite imagery showed convective bursts gathering around the center in a curved manner;{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210821/180000/A_WTPQ30RJTD211800_C_RJTD_20210821192117_21.txt|title=RSMC Prognostic Reasoning No. 7 for Tropical Storm 2112 (Omais)|publisher=Japan Meteorological Agency|date=August 21, 2021|access-date=August 24, 2021|archive-url=https://archive.today/20210822023743/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210821/180000/A_WTPQ30RJTD211800_C_RJTD_20210821192117_21.txt|archive-date=August 22, 2021}} however, shortly after at 06:00 UTC on August 22, it weakened into a tropical storm due to increasing wind shear from the westerlies.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210822/060000/A_WTPQ30RJTD220600_C_RJTD_20210822071817_21.txt|title=RSMC Prognostic Reasoning No. 9 for Tropical Storm 2112 (Omais)|publisher=Japan Meteorological Agency|date=August 22, 2021|access-date=August 24, 2021|archive-url=https://archive.today/20210822141123/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210822/060000/A_WTPQ30RJTD220600_C_RJTD_20210822071817_21.txt|archive-date=August 22, 2021}} At 03:00 UTC on August 23, the JTWC downgraded it to a tropical depression{{cite JTWC|date=August 23, 2021|access-date=August 24, 2021|type=warn|designation=16W|name=Omais|category=TD|no=43|url=https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-url=https://web.archive.org/web/20210823000000/https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-date=August 23, 2021}} [https://wiki.chlod.net/jtwc/text/2021-08-23-0350-wp1621web.txt Alt URL] as its convection was severely affected by the extremely high westerly wind shear.{{cite JTWC|date=August 23, 2021|access-date=August 24, 2021|type=prog|designation=16W|name=Omais|category=TD|no=43|url=https://www.metoc.navy.mil/jtwc/products/wp1621prog.txt|archive-url=https://web.archive.org/web/20210824000000/https://www.metoc.navy.mil/jtwc/products/wp1621prog.txt|archive-date=August 24, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-08-23-0430-wp1621prog.txt Alt URL] On August 24 at 00:00 UTC, the JMA issued its final advisory as the system became an extratropical cyclone over the Sea of Japan.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|title=RSMC Tropical Cyclone Advisory|publisher=Japan Meteorological Agency|date=August 24, 2021|access-date=August 24, 2021|archive-url=https://archive.today/20210824013316/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|archive-date=August 24, 2021}} Nine hours later, the JTWC followed and issued its last warning for Omais.{{cite JTWC|date=August 24, 2021|type=warn|designation=16W|name=Omais|category=TD|no=44|url=https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-url=https://web.archive.org/web/20210824000000/https://www.metoc.navy.mil/jtwc/products/wp1621web.txt|archive-date=August 24, 2021}} [https://wiki.chlod.net/jtwc/text/2021-08-23-0710-wp1621web.txt Alt URL]

As the system neared the islands of Guam, the NWS issued a tropical storm watch at 22:36 UTC on August 14.{{cite web|url=https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=13&glossary=0|title=Tropical Storm 16W Advisory Number 18|website=www.weather.gov/gum|author=Mike Ziobro|publisher=National Weather Service|location=Tiyan, Guam|date=August 14, 2021|access-date=August 16, 2021|archive-url=https://archive.today/20210816090406/https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=13&glossary=0|archive-date=August 16, 2021}} At 10:00 UTC on August 15, the NWS issued a tropical storm watch for the island of Rota.{{cite web|url=https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=9&glossary=0|title=Tropical Depression 16W Advisory Number 20|website=www.weather.gov/gum|author=Genevieve Cruz Miller|publisher=National Weather Service|location=Tiyan, Guam|date=August 15, 2021|access-date=August 16, 2021|archive-url=https://archive.today/20210816090410/https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=9&glossary=0|archive-date=August 16, 2021}} However, all watches were lifted by the NWS at 09:14 UTC the next day as the system further weakened.{{cite web|url=https://forecast.weather.gov/product.php?issuedby=PQ1&product=TCP&site=gum|title=Tropical Depression 16W Advisory Number 24|website=www.weather.gov/gum|last=Hong|publisher=National Weather Service|location=Tiyan, Guam|date=August 16, 2021|access-date=August 16, 2021|archive-url=https://archive.today/20210816093829/https://forecast.weather.gov/product.php?issuedby=PQ1&product=TCP&site=gum|archive-date=August 16, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=September 1

|Dissipated=September 4

|Image=17W 2021-09-03 0240Z.jpg

|Track=17W 2021 track.png

|10-min winds=30

|1-min winds=35

|Pressure=1008

}}

On September 1 on 00:00 UTC, the JMA noticed a tropical depression near Wake Island.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 010000|publisher=Japan Meteorological Agency|date=September 1, 2021|access-date=September 1, 2021|archive-url=https://archive.today/20210901031456/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=September 1, 2021}} At 06:00 UTC, the JTWC gave a medium chance of formation for the system over the same area, despite being classified as subtropical depression, as it developed a well defined, partially exposed low-level circulation center.{{cite JTWC|date=September 1, 2021|type=|title=Significant Tropical Weather Advisory for the Western and Southern Pacific Oceans|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|url-status=live|archive-date=2017-12-21|archive-url=https://web.archive.org/web/20171221082438/http://www.metoc.navy.mil/jtwc/products/abpwweb.txt}} [https://wiki.chlod.net/jtwc/text/2021-09-01-0620-abpwweb.txt Alt URL] At 20:00 UTC, the JTWC issued a TCFA for the system,{{cite JTWC|date=September 1, 2021|access-date=September 2, 2021|type=tcfa|designation=93W|url=https://www.metoc.navy.mil/jtwc/products/wp9321web.txt|archive-url=https://web.archive.org/web/20210901000000/https://www.metoc.navy.mil/jtwc/products/wp9321web.txt|archive-date=September 1, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-01-2010-wp9321web.txt Alt URL] and at 03:00 UTC the next day, it was upgraded to a tropical depression and was designated as 17W,{{cite JTWC|date=September 2, 2021|type=warn|designation=17W|name=Seventeen|no=1|category=TD|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-url=https://archive.today/20210902032234/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-date=September 2, 2021}} as its low-level circulation center became more defined but still partially exposed.{{cite JTWC|date=September 2, 2021|type=prog|designation=17W|name=Seventeen|no=1|category=TD|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-url=https://archive.today/20210902032240/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=September 2, 2021}} The system maintained its defined convective structure,{{cite JTWC|date=September 2, 2021|access-date=September 5, 2021|type=prog|designation=17W|name=Seventeen|no=2|category=TD|url=https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-url=https://web.archive.org/web/20210902000000/https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-date=September 2, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-02-1140-wp1721prog.txt Alt URL]{{cite JTWC|date=September 2, 2021|access-date=September 5, 2021|type=prog|designation=17W|name=Seventeen|no=3|category=TD|url=https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-url=https://web.archive.org/web/20210902000000/https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-date=September 2, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-02-1440-wp1721prog.txt Alt URL]{{cite JTWC|date=September 2, 2021|access-date=September 5, 2021|type=prog|designation=17W|name=Seventeen|no=4|category=TD|url=https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-url=https://web.archive.org/web/20210902000000/https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-date=September 2, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-02-2100-wp1721prog.txt Alt URL]{{cite JTWC|date=September 3, 2021|access-date=September 5, 2021|type=prog|designation=17W|name=Seventeen|no=5|category=TD|url=https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-url=https://web.archive.org/web/20210903000000/https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-date=September 3, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-03-0550-wp1721prog.txt Alt URL] however at 09:00 UTC on September 3, it struggled to consolidate because of presence of dry air causing its convective structure to diminish.{{cite JTWC|date=September 3, 2021|access-date=September 5, 2021|type=prog|designation=17W|name=Seventeen|no=6|category=TD|url=https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-url=https://web.archive.org/web/20210903000000/https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-date=September 3, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-03-0820-wp1721prog.txt Alt URL]{{cite JTWC|date=September 3, 2021|access-date=September 5, 2021|type=prog|designation=17W|name=Seventeen|no=7|category=TD|url=https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-url=https://web.archive.org/web/20210903000000/https://www.metoc.navy.mil/jtwc/products/wp1721prog.txt|archive-date=September 3, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-03-1520-wp1721prog.txt Alt URL] At 21:00 UTC, the JTWC issued its final advisory as its remaining convection was sheared by the incoming westerlies.{{cite JTWC|date=September 3, 2021|access-date=September 5, 2021|type=warn|designation=17W|name=Seventeen|no=8|category=TD|url=https://www.metoc.navy.mil/jtwc/products/wp1721web.txt|archive-url=https://web.archive.org/web/20210903000000/https://www.metoc.navy.mil/jtwc/products/wp1721web.txt|archive-date=September 3, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-03-1930-wp1721web.txt Alt URL] At 12:00 UTC on September 4, the JMA stopped tracking the system.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 040120|publisher=Japan Meteorological Agency|date=September 4, 2021|access-date=September 5, 2021|archive-url=https://archive.today/20210904144020/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=September 4, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=September 5

|Dissipated=September 13

|Image=Conson 2021-09-06 0505Z.jpg

|Track=Conson 2021 track.png

|10-min winds=50

|1-min winds=65

|Pressure=992

}}

{{main|Tropical Storm Conson}}

On September 3, a disturbance was noted by the JTWC, approximately {{cvt|195|nmi|mi km|round=5}} from Andersen Air Force Base in Yigo, Guam, as it developed a weakly defined low-level circulation center.{{cite JTWC|date=September 3, 2021|access-date=September 6, 2021|type=|title=Significant Advisory for Western and Southern Pacific|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|url-status=live|archive-date=2017-12-21|archive-url=https://web.archive.org/web/20171221082438/http://www.metoc.navy.mil/jtwc/products/abpwweb.txt}} [https://wiki.chlod.net/jtwc/text/2021-09-03-0100-abpwweb.txt Alt URL] The disturbance gradually intensified, and on September 5, the JMA recognized the system as a tropical depression.{{cite web|date=September 5, 2021|title=JMA Warning and Summary 051800|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210905/180000/A_WWJP27RJTD051800_C_RJTD_20210905202745_100.txt|archive-url=https://archive.today/20210906024050/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210905/180000/A_WWJP27RJTD051800_C_RJTD_20210905202745_100.txt|archive-date=September 6, 2021|access-date=September 6, 2021|publisher=Japan Meteorological Agency}} Later that day, the JTWC issued a TCFA as its low-level circulation center and its surrounding convection became well organized.{{cite JTWC|date=September 5, 2021|type=tcfa|designation=94W|url=https://www.metoc.navy.mil/jtwc/products/wp9421web.txt|archive-url=https://web.archive.org/web/20210412125054/https://www.metoc.navy.mil/jtwc/products/wp9421web.txt|url-status=dead|archive-date=2021-04-12|access-date=September 6, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-05-2320-wp9421web.txt Alt URL] The agency recognized the system as a tropical depression around four hours later.{{cite JTWC|date=September 6, 2021|type=warn|designation=18W|name=Eighteen|category=TD|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp1821web.txt|url-status=dead|archive-date=2021-09-06|archive-url=https://archive.today/20210906104400/https://www.metoc.navy.mil/jtwc/products/wp1821web.txt}} [https://wiki.chlod.net/jtwc/text/2021-09-06-0150-wp1821web.txt Alt URL] At 21:00 UTC, the PAGASA recognized the system as a tropical depression, with the agency assigning it the local name Jolina.{{Cite PAGASA|date=September 5, 2021|name=Jolina|intl_name=Conson|type=tcb|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf|url-status=live|archive-date=2021-09-06|archive-url=https://web.archive.org/web/20210906053739/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf}} [https://archive.org/download/pagasa-21-TC10/PAGASA_21-TC10_Jolina_TCB%2301.pdf Alt URL] The next day on 06:00 UTC, the JMA upgraded the system to a tropical storm, assigning it the international name Conson, with the JTWC following suit three hours later.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Prognostic Reasoning No. 1 Tropical Storm 2113 (Conson)|publisher=Japan Meteorological Agency|date=September 6, 2021|access-date=September 6, 2021|archive-url=https://archive.today/20210906084116/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=September 6, 2021}}{{cite JTWC|date=September 6, 2021|type=warn|designation=18W|name=Conson|category=TS|no=2|url=https://www.metoc.navy.mil/jtwc/products/wp1821web.txt|url-status=dead|archive-date=2021-09-06|archive-url=https://archive.today/20210906104400/https://www.metoc.navy.mil/jtwc/products/wp1821web.txt}} [https://wiki.chlod.net/jtwc/text/2021-09-06-0910-wp1821web.txt Alt URL] At 12:00 UTC, the JTWC upgraded it typhoon before downgrading it into a tropical storm at 18:00 UTC.{{cite web|url=https://www.nrlmry.navy.mil/atcf_web/docs/tracks/2021/bwp182021.dat|title=JTWC Best Track data for Typhoon 18W (Conson)|publisher=Joint Typhoon Warning Center|location=Honolulu, Hawaii|date=|access-date=September 12, 2021|archive-url=https://web.archive.org/web/20210912095406/https://www.nrlmry.navy.mil/atcf_web/docs/tracks/2021/bwp182021.dat|archive-date=September 12, 2021}} Three hours later, the JMA upgraded it to a severe tropical storm.{{Cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210906/180000/A_WTPQ30RJTD061800_C_RJTD_20210906195517_26.txt|title=RSMC Prognostic Reasoning No. 3 for Severe Tropical Storm 2113 (Conson)|publisher=Japan Meteorological Agency|date=September 6, 2021|access-date=September 6, 2021|archive-url=https://archive.today/20210907024432/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210906/180000/A_WTPQ30RJTD061800_C_RJTD_20210906195517_26.txt|archive-date=September 7, 2021}} At the same moment, Conson rapidly intensified into a typhoon according to the PAGASA as it made its first landfall on Hernani, Eastern Samar.{{Cite PAGASA|date=September 6, 2021|name=Jolina|intl_name=Conson|type=tcb|no=5|category=TY|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf|url-status=live|archive-date=2021-09-06|archive-url=https://web.archive.org/web/20210906053739/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf}} [https://archive.org/download/pagasa-21-TC10/PAGASA_21-TC10_Jolina_TCB%2305.pdf Alt URL] Conson then made another landfall at 02:30 PHT (18:30 UTC) in Daram, Samar, and another one at 03:40 PHT (19:40 UTC) in Santo Niño, Samar.{{cite news |last1=Arceo |first1=Acor |title=Typhoon Jolina makes 2nd, 3rd landfalls in island towns of Samar province |url=https://www.rappler.com/nation/weather/typhoon-jolina-pagasa-forecast-september-7-2021-5am |access-date=September 18, 2021 |work=Rappler |date=September 7, 2021}} At 06:30 PHT (22:30 UTC), Conson made a fourth landfall in Almagro, Samar. At 00:00 UTC on September 7, the JMA downgraded it to a tropical storm as it was significantly weakened by multiple landfalls.{{Cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Prognostic Reasoning No. 4 for Tropical Storm 2113 (Conson)|publisher=Japan Meteorological Agency|date=September 7, 2021|access-date=September 7, 2021|archive-url=https://archive.today/20210907024048/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=September 7, 2021}} Conson then made a fifth landfall in Dimasalang, Masbate at 11:00 PHT (03:00 UTC), later weakening into a severe tropical storm, according to PAGASA.{{Cite PAGASA|date=September 7, 2021|name=Jolina|intl_name=Conson|type=tcb|no=9|category=TY|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf|url-status=live|archive-date=2021-09-06|archive-url=https://web.archive.org/web/20210906053739/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf}} [https://archive.org/details/pagasa-21-TC10 Alt URL]{{Cite PAGASA|date=September 7, 2021|name=Jolina|intl_name=Conson|type=tcb|no=10|category=STS|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf|url-status=live|archive-date=2021-09-06|archive-url=https://web.archive.org/web/20210906053739/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf}} [https://archive.org/details/pagasa-21-TC10 Alt URL] Conson then made a sixth landfall over Torrijos, Marinduque.{{Cite web|author=ABS-CBN News|date=September 7, 2021|title=Jolina makes landfall in Marinduque|url=https://headtopics.com/ph/jolina-makes-landfall-in-marinduque-21688359|access-date=September 7, 2021|website=Head Topics|language=en|archive-url=https://web.archive.org/web/20210908080909/https://headtopics.com/ph/jolina-makes-landfall-in-marinduque-21688359|archive-date=September 8, 2021}} Conson continued to pummel through more islands, making a seventh landfall over the area in Lobo, Batangas.{{Cite PAGASA|date=September 8, 2021|name=Jolina|intl_name=Conson|type=tcb|no=16|category=STS|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf|url-status=live|archive-date=2021-09-06|archive-url=https://web.archive.org/web/20210906053739/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf}} [https://archive.org/details/pagasa-21-TC10 Alt URL] After making its eighth landfall at San Juan, Batangas, Conson traversed the Batangas{{snd}}Cavite area as the PAGASA declared it to have weakened back into a tropical storm.{{Cite news|author=Gillan Ropero|date=September 8, 2021|title='Jolina' makes landfall in Batangas, 'Kiko' slightly intensifies: PAGASA|url=https://news.abs-cbn.com/news/09/08/21/jolina-makes-landfall-in-batangas-pagasa|work=ABS-CBN News|access-date=September 8, 2021}} Conson made its ninth and final landfall in the vicinity of Mariveles, Bataan.{{Cite web|title=Tropical Storm Jolina makes 9th landfall in Bataan|url=https://www.rappler.com/nation/weather/tropical-storm-jolina-typhoon-kiko-pagasa-forecast-september-8-2021-8pm|access-date=September 9, 2021|website=Rappler|date=September 8, 2021|language=en}} At 12:00 UTC, Conson re-intensified into a severe tropical storm, as it entered the West Philippine Sea.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Prognostic Reasoning No. 14 for Severe Tropical Storm 2113 (Conson)|publisher=Japan Meteorological Agency|date=September 9, 2021|access-date=September 9, 2021|archive-url=https://archive.today/20210909152937/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=September 9, 2021}} Three hours later, the PAGASA issued its final bulletin for Conson as it exited the PAR and accelerated westward.{{Cite PAGASA|date=September 9, 2021|name=Jolina|intl_name=Conson|type=tcb|no=26-FINAL|category=STS|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf|url-status=live|archive-date=2021-09-06|archive-url=https://web.archive.org/web/20210906053739/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_jolina.pdf}} [https://archive.org/download/pagasa-21-TC10/PAGASA_21-TC10_Jolina_TCB%2326-FINAL.pdf Alt URL]

As Conson moved westward, it came in contact with unfavorable conditions such as increasing vertical wind shear and land interaction with Vietnam. These conditions made Conson weaken, prompting the JMA to downgrade it to a tropical storm at 12:00 UTC on September 11 to further downgrade it to a tropical depression at 18:00 UTC the same day, with the JTWC downgrading it to a tropical depression at 03:00 UTC on September 12.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Prognostic Reasoning No. 22 for Tropical Storm 2113 (Conson)|publisher=Japan Meteorological Agency|date=September 11, 2021|access-date=September 12, 2021|archive-url=https://archive.today/20210911151224/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=September 11, 2021}}{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|title=RSMC Tropical Cyclone Advisory|publisher=Japan Meteorological Agency|date=September 11, 2021|access-date=September 13, 2021|archive-url=https://archive.today/20210912034339/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|archive-date=September 12, 2021}}{{cite JTWC|date=September 12, 2021|type=prog|designation=18W|name=Conson|category=TD|no=25|url=https://www.metoc.navy.mil/jtwc/products/wp1821prog.txt|url-status=dead|archive-date=2021-09-08|archive-url=https://web.archive.org/web/20210908053554/https://www.metoc.navy.mil/jtwc/products/wp1821prog.txt}} [https://wiki.chlod.net/jtwc/prog/2021-09-12-0410-wp1821prog.txt Alt URL] It stalled off the coast of Vietnam near Quang Nam because of the confluence of three ridges.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 120000|publisher=Japan Meteorological Agency|date=September 12, 2021|access-date=September 12, 2021|archive-url=https://archive.today/20210912034356/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=September 12, 2021}}{{cite JTWC|date=September 12, 2021|type=prog|designation=18W|name=Conson|category=TD|no=26|url=https://www.metoc.navy.mil/jtwc/products/wp1821prog.txt|url-status=dead|archive-date=2021-09-08|archive-url=https://web.archive.org/web/20210908053554/https://www.metoc.navy.mil/jtwc/products/wp1821prog.txt}} [https://wiki.chlod.net/jtwc/prog/2021-09-12-0740-wp1821prog.txt Alt URL]{{cite JTWC|date=September 12, 2021|access-date=September 13, 2021|type=prog|designation=18W|name=Conson|category=TD|no=27|url=https://www.metoc.navy.mil/jtwc/products/wp1821prog.txt|url-status=dead|archive-date=2021-09-08|archive-url=https://web.archive.org/web/20210908053554/https://www.metoc.navy.mil/jtwc/products/wp1821prog.txt}} [https://wiki.chlod.net/jtwc/prog/2021-09-12-1340-wp1821prog.txt Alt URL] At 21:00 UTC, the JTWC issued its final advisory as it made landfall near Da Nang, Vietnam, which caused the system to weaken rapidly. Satellite imagery showed that its low-level circulation center weakened significantly and became less defined.{{cite JTWC|date=September 12, 2021||access-date=September 13, 2021|type=warn|designation=18W|name=Conson|category=TD|no=28-FINAL|url=https://www.metoc.navy.mil/jtwc/products/wp1821web.txt|url-status=dead|archive-date=2021-09-06|archive-url=https://archive.today/20210906104400/https://www.metoc.navy.mil/jtwc/products/wp1821web.txt}} [https://wiki.chlod.net/jtwc/text/2021-09-12-1940-wp1821web.txt Alt URL] By 18:00 UTC of September 13, the JMA stopped tracking Conson,{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210913/180000/A_WWJP27RJTD131800_C_RJTD_20210913202118_2.txt|title=JMA Warning and Summary 131800|publisher=Japan Meteorological Agency|date=September 13, 2021|access-date=September 15, 2021|archive-url=https://archive.today/20210914034154/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210913/180000/A_WWJP27RJTD131800_C_RJTD_20210913202118_2.txt|archive-date=September 14, 2021|url-status=live}} as the agency last noted it at 12:00 UTC.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 131200|publisher=Japan Meteorological Agency|date=September 13, 2021|access-date=September 15, 2021|archive-url=https://archive.today/20210913153356/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=September 13, 2021|url-status=live}}

According to the NDRRMC, 23 people were killed in the Philippines due to the storm, with combined infrastructural and agricultural damages pegged at ₱5.17 billion (US$88.3 million).{{Cite web |title=Summary Table - Situational Report No.16 for Typhoon Jolina (2021) |url=https://monitoring-dashboard.ndrrmc.gov.ph/assets/uploads/situations/summary_REPORTS25.pdf |access-date=2024-10-26 |publisher=National Disaster Risk Reduction and Management Council (NDRRMC) |publication-date=2022-04-04}} In Vietnam, 2 people were killed by flooding.[http://phongchongthientai.mard.gov.vn/Pages/bao-cao-nhanh-cong-tac-truc-ban-pctt-ngay-12-9-2021.aspx Daily Report 13/09/2021] Agriculture damages on the offshore island of Lý Sơn was estimated to be about 100 billion ₫ (US$3.9 million).{{Cite web|author=Vân Anh|date=September 13, 2021|title=Thiệt hại ban đầu do bão số 5 gây ra|url=https://dulich.petrotimes.vn/thiet-hai-ban-dau-do-bao-so-5-gay-ra-625498.html?randTime=1631516385|access-date=September 13, 2021|website=PetroTimes|language=vi}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=September 5

|Dissipated=September 18

|Image=Chanthu 2021-09-10 0530Z.png

|Track=Chanthu 2021 path.png

|10-min winds=115

|1-min winds=155

|Pressure=905

}}

{{main|Typhoon Chanthu (2021)}}

At 06:00 UTC on September 5, the JTWC began monitoring an area of convection that had formed {{cvt|446|nmi|mi km}} from Legazpi, Philippines.{{cite JTWC|date=September 6, 2021|type=|title=Significant Advisory for Western and Southern Pacific|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20210905000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=September 5, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-05-0600-abpwweb.txt Alt URL] At 18:00 UTC the same day, the JMA declared it as a tropical depression.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210905/180000/A_WWJP27RJTD051800_C_RJTD_20210905202745_100.txt|title=JMA Weather and Summary 051800|publisher=Japan Meteorological Agency|date=September 5, 2021|access-date=September 6, 2021|archive-url=https://archive.today/20210906024050/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210905/180000/A_WWJP27RJTD051800_C_RJTD_20210905202745_100.txt|archive-date=September 6, 2021}} Five and half hours later, the JTWC issued a TCFA as its circulation and convection had significantly improved.{{cite JTWC|date=September 6, 2021|type=tcfa|designation=95W|url=https://www.metoc.navy.mil/jtwc/products/wp9521web.txt|archive-url=https://web.archive.org/web/20210905000000/https://www.metoc.navy.mil/jtwc/products/wp9521web.txt|archive-date=September 5, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-05-2250-wp9521web.txt Alt URL] At 09:00 UTC the next day, the JTWC upgraded the disturbance to a tropical depression, designating it as 19W.{{cite JTWC|date=September 6, 2021|type=warn|designation=19W|name=Nineteen|category=TD|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp1921web.txt|archive-url=https://web.archive.org/web/20210906000000/https://www.metoc.navy.mil/jtwc/products/wp1921web.txt|archive-date=September 6, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-06-0920-wp1921web.txt Alt URL] The JTWC later upgraded it to a tropical storm as it was noted that an eye-like feature was forming.{{cite JTWC|date=September 6, 2021|access-date=September 7, 2021|type=prog|designation=19W|name=Nineteen|category=TS|no=3|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210906000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 6, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-06-2140-wp1921prog.txt Alt URL] The JMA later did the same at 00:00 UTC on September 7, naming it Chanthu.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 3 for Tropical Storm Chanthu (2114)|publisher=Japan Meteorological Agency|date=September 5, 2021|access-date=September 6, 2021|archive-url=https://archive.today/20210907024103/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=September 7, 2021}} At 09:30 UTC, the PAGASA reported that Chanthu entered the PAR, assigning it the name Kiko.{{cite PAGASA|date=September 7, 2021|access-date=September 10, 2021|name=Kiko|intl_name=Chanthu|type=tcb|category=TY|no=1|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_kiko.pdf|url-status=live|archive-date=2021-09-07|archive-url=https://web.archive.org/web/20210907162029/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_kiko.pdf}} [https://archive.org/details/pagasa-21-TC11 Alt URL] At 12:00 UTC, the JMA upgraded it to a severe tropical storm.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 5 for Severe Tropical Storm Chanthu (2114)|publisher=Japan Meteorological Agency|date=September 7, 2021|access-date=September 7, 2021|archive-url=https://archive.today/20210907142212/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=September 7, 2021}} At the same moment, Chanthu started its rapid intensification as it quickly became a minimal typhoon.{{cite JTWC|date=September 7, 2021|type=prog|designation=19W|name=Chanthu|category=TY|no=5|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210907000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 7, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-07-0900-wp1921prog.txt Alt URL]{{cite JTWC|date=September 7, 2021|type=prog|designation=19W|name=Chanthu|category=TY|no=6|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210907000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 7, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-07-1450-wp1921prog.txt Alt URL] Several hours later, the typhoon reached Category 4-equivalent status, and by the next day at 09:00 UTC, it reached Category 5-equivalent intensity, developing a {{cvt|5|nmi|round=5}}-wide eye which was surrounded by very compact, intense convection.{{cite JTWC|date=September 8, 2021|type=warn|designation=19W|name=Chanthu|category=STY|no=9|url=https://www.metoc.navy.mil/jtwc/products/wp1921web.txt|archive-url=https://web.archive.org/web/20210908101646/https://www.metoc.navy.mil/jtwc/products/wp1921web.txt|archive-date=September 8, 2021}}{{cite JTWC|date=September 8, 2021|type=prog|designation=19W|name=Chanthu|category=STY|no=9|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210908102131/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 8, 2021}} After reaching its initial peak, Chanthu was downgraded to a Category 4-equivalent super typhoon as its pinhole-shaped eye started to fade.{{cite JTWC|date=September 9, 2021|type=prog|designation=19W|name=Chanthu|category=STY|no=13|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210909000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 9, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-09-0900-wp1921prog.txt Alt URL] However, by September 10, Chanthu began to re-intensify as its eye began to clear up.{{cite JTWC|date=September 10, 2021|type=prog|designation=19W|name=Chanthu|category=STY|no=16|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210910000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 10, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-10-0240-wp1921prog.txt Alt URL] Chanthu further intensified into a Category 5-equivalent super typhoon once again at 09:00 UTC that day.{{cite JTWC|date=September 10, 2021|type=prog|designation=19W|name=Chanthu|category=STY|no=17|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210910000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 10, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-10-0850-wp1921prog.txt Alt URL] On 05:00 PHT on September 11 (21:00 UTC on September 10), the PAGASA reported that Chanthu passed to the east of the Babuyan Islands;{{cite PAGASA|date=September 9, 2021|access-date=September 10, 2021|name=Kiko|intl_name=Chanthu|type=tcb|category=TY|no=19|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_kiko.pdf|url-status=live|archive-date=2021-09-07|archive-url=https://web.archive.org/web/20210907162029/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_kiko.pdf}} [https://archive.org/details/pagasa-21-TC11 Alt URL] at 08:30 PHT (00:30 UTC), Chanthu made landfall in Ivana, Batanes as the storm began to weaken slightly.{{cite tweet|user=dost_pagasa|number=1436496364616052736|title=At 8:30 AM today, Typhoon #KikoPH made landfall over Ivana, Batanes.}}{{cite PAGASA|date=September 11, 2021|access-date=September 13, 2021|name=Kiko|intl_name=Chanthu|type=tcb|category=TY|no=21|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_kiko.pdf|url-status=live|archive-date=2021-09-07|archive-url=https://web.archive.org/web/20210907162029/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_kiko.pdf}} [https://archive.org/details/pagasa-21-TC11 Alt URL] On September 11, Chanthu began to weaken as it continued to move northwards with the presence of dry air.{{cite JTWC|date=September 11, 2021|access-date=September 13, 2021|type=prog|designation=19W|name=Chanthu|category=TY|no=22|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210911000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 11, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-11-1530-wp1921prog.txt Alt URL] The PAGASA issued its last bulletin for Chanthu since it exited the PAR on the next day.{{cite PAGASA|date=September 12, 2021|access-date=September 15, 2021|name=Kiko|intl_name=Chanthu|type=tcb|category=TY|no=29-FINAL|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_kiko.pdf|url-status=live|archive-date=2021-09-07|archive-url=https://web.archive.org/web/20210907162029/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin_kiko.pdf}} [https://archive.org/details/pagasa-21-TC11/PAGASA_21-TC11_Kiko_TCB%2329-FINAL Alt URL] By September 14, Chanthu was no longer a typhoon as it slowly moved south-eastwards towards Japan.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 33 for Tropical Storm 2114 (Chanthu)|publisher=Japan Meteorological Agency|date=September 14, 2021|access-date=September 14, 2021|archive-url=https://archive.today/20210914143129/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=September 14, 2021|url-status=live}} Due to decreasing wind shear and marginally favorable sea surface temperatures, Chanthu strengthened enough for the JMA to re-classify it as a severe tropical storm on the next day.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 39 for Severe Tropical Storm 2114 (Chanthu)|publisher=Japan Meteorological Agency|date=September 16, 2021|access-date=September 18, 2021|archive-url=https://archive.today/20210916032406/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=September 16, 2021|url-status=live}} On September 17 on 09:00 UTC, Chanthu crossed near the town of Ikitsuki, Nagasaki in Japan.{{cite JTWC|date=September 17, 2021|access-date=September 18, 2021|type=prog|designation=19W|name=Chanthu|category=TS|no=45|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210917000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 17, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-17-0830-wp1921prog.txt Alt URL] It continued to move northwards as it moved through the rugged Japanese islands, causing it to weaken significantly.{{cite JTWC|date=September 17, 2021|access-date=September 18, 2021|type=prog|designation=19W|name=Chanthu|category=TS|no=46|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210917000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 17, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-17-1440-wp1921prog.txt Alt URL] This caused the JMA to downgrade it to a tropical storm three hours later.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210917/120000/A_WTPQ31RJTD171200_C_RJTD_20210917134818_52.txt|title=RSMC Prognostic Reasoning No. 45 for Tropical Storm 2114 (Chanthu)|publisher=Japan Meteorological Agency|date=September 17, 2021|access-date=September 18, 2021|archive-url=https://archive.today/20210917150046/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20210917/120000/A_WTPQ31RJTD171200_C_RJTD_20210917134818_52.txt|archive-date=September 17, 2021|url-status=live}} At 21:00 UTC, the JTWC downgraded it to a tropical depression, as it was also undergoing extratropical transition.{{cite JTWC|date=September 17, 2021|access-date=September 18, 2021|type=prog|designation=19W|name=Chanthu|category=TD|no=47|url=https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-url=https://web.archive.org/web/20210917000000/https://www.metoc.navy.mil/jtwc/products/wp1921prog.txt|archive-date=September 17, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-17-2050-wp1921prog.txt Alt URL] On September 18, the JTWC issued its final warning for the system.{{cite JTWC|date=September 18, 2021|access-date=September 18, 2021|type=warn|designation=19W|name=Chanthu|category=TD|no=48-FINAL|url=https://www.metoc.navy.mil/jtwc/products/wp1921web.txt|archive-url=https://web.archive.org/web/20210918000000/https://www.metoc.navy.mil/jtwc/products/wp1921web.txt|archive-date=September 18, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-18-0210-wp1921web.txt Alt URL]

Chanthu caused devastating effects in the islands of Batanes as it was made a direct hit from the typhoon. According to the local residents it was the most ferocious storm even seen.{{Cite web|date=September 12, 2021|title=Strong typhoon cuts power, causes flooding in northern Philippines|url=https://www.reuters.com/world/asia-pacific/strong-typhoon-cuts-power-causes-flooding-northern-philippines-2021-09-12/|publisher=Reuters|author=Peter Blaza|author2=Jacqueline Wong|access-date=September 13, 2021|website=www.reuters.com}} More than 30,000 residents were affected from Region I, II, III and CAR. Four municipalities went without power and none were restored and one municipality experienced water supply outage and none were restored. There were also reports of landslide and flooding mostly from Region I and III. As of September 15, total damages from the typhoon were up to ₱37.4 million (US$748,000).{{cite web|url=https://monitoring-dashboard.ndrrmc.gov.ph/exports/reporting/situational-report-for-typhoon-kiko2021/national/513|archive-url=https://web.archive.org/web/20211127015937/https://monitoring-dashboard.ndrrmc.gov.ph/exports/reporting/situational-report-for-typhoon-kiko2021/national/513|url-status=dead|archive-date=November 27, 2021|title=Sitrep no.7 for Typhoon Kiko (2021)|website=ndrrmc.gov.ph|publisher=National Disaster Risk Reduction and Management Council|date=September 17, 2021|access-date=September 15, 2021}} On September 12, Chanthu passed east of Taiwan. This caused heavy rainfall over the island including the capital city Taipei. Up to {{cvt|13|cm}} of rainfall was recorded and winds up to {{cvt|164|km/h}} were reported.{{Cite news|date=September 12, 2021|title=Typhoon pours 5 inches of rain on Taiwan, heads for Shanghai|url=https://www.washingtonpost.com/world/typhoon-chanthu-drenches-taiwan-with-up-to-5-inches-of-rain/2021/09/12/1619fd26-137e-11ec-baca-86b144fc8a2d_story.html|newspaper=The Washington Post|author=Associated Press|access-date=September 13, 2021|archive-date=September 13, 2021|archive-url=https://web.archive.org/web/20210913092032/https://www.washingtonpost.com/world/typhoon-chanthu-drenches-taiwan-with-up-to-5-inches-of-rain/2021/09/12/1619fd26-137e-11ec-baca-86b144fc8a2d_story.html|url-status=dead}} In China, the storm shut down both Shanghai Port, the world's largest container port, and Ningbo-Zhoushan Port, the world's largest port by cargo throughput, briefly on 12–14 September, with about 86 vessels waiting outside the ports.

{{Cite news|author=Ji Siqi|title=China's busiest container-shipping ports in Shanghai, Ningbo begin to reopen after Typhoon Chanthu|publisher=South China Morning Post|url=https://www.scmp.com/economy/china-economy/article/3148727/chinas-busiest-container-shipping-ports-shanghai-ningbo-begin|date=September 14, 2021|access-date=September 15, 2021}} As Chanthu passed near the island of Jeju, it caused winds up to {{cvt|30 to 40|m/s|km/h mph|round=5}} and {{cvt|50|mm}} of rainfall. There were reports of structural damage and overwhelmed drainage systems on the island. 23 flights were grounded and 48 ferry sailings were cancelled.{{Cite web|author=Yonhap|date=September 17, 2021|title=Typhoon Chanthu passes near Jeju, flooding roads, homes, canceling flights|url=http://www.koreaherald.com/view.php?ud=20210917000255|access-date=September 18, 2021|publisher=The Korea Herald}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=September 22

|Dissipated=October 2

|Image=Mindulle 2021-09-26 0426Z.jpg

|Track=Mindulle 2021 path.png

|10-min winds=105

|1-min winds=140

|Pressure=920

}}

{{main|Typhoon Mindulle (2021)}}

On September 21, the JTWC spotted an area of convection formed approximately {{cvt|703|nmi}} from Guam.{{cite JTWC|date=September 21, 2021|access-date=September 22, 2021|type=|title=Significant Tropical Weather Advisory for Western and Southern Pacific Ocean|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20210921000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=September 21, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-21-0230-abpwweb.txt Alt URL] The system rapidly consolidated itself and formed a well-defined LLCC,{{cite JTWC|date=September 21, 2021|access-date=September 22, 2021|type=tcfa|designation=99W|url=https://www.metoc.navy.mil/jtwc/products/wp9921web.txt|archive-url=https://web.archive.org/web/20210921000000/https://www.metoc.navy.mil/jtwc/products/wp9921web.txt|archive-date=September 21, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-21-1310-wp9921web.txt Alt URL] and thus, the system strengthened into a tropical depression on 00:00 UTC of September 22.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 220000|publisher=Japan Meteorological Agency|date=September 22, 2021|access-date=September 22, 2021|archive-url=https://archive.today/20210922033008/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=September 22, 2021|url-status=live}} The JTWC did the same later that day, designating the system as 20W.{{cite JTWC|date=September 22, 2021|access-date=September 23, 2021|type=prog|designation=20W|name=Twenty|category=TD|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210922000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 22, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-22-1440-wp2021prog.txt Alt URL] At 09:00 UTC of September 23, the JTWC upgraded it to a tropical storm, as its low-level circulation center became partially exposed.{{cite JTWC|date=September 23, 2021|access-date=September 24, 2021|type=prog|designation=20W|name=Twenty|category=TS|no=4|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210923000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 23, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-23-0850-wp2021prog.txt Alt URL] The JMA did the same three hours later, and named it Mindulle.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 2 for Tropical Storm Mindulle (2116)|publisher=Japan Meteorological Agency|date=September 23, 2021|access-date=September 24, 2021|archive-url=https://archive.today/20210923142421/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=September 23, 2021|url-status=live}}

At 12:00 UTC of September 24, the JMA upgraded it to a severe tropical storm.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 6 for Severe Tropical Storm Mindulle (2116)|publisher=Japan Meteorological Agency|date=September 24, 2021|access-date=September 24, 2021|archive-url=https://archive.today/20210924142404/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=September 24, 2021|url-status=live}} By 03:00 UTC the next day, the JTWC upgraded it to a Category 1-equivalent typhoon, as it developed a small eye. The presence of dry air had slowed its intensification, but it still managed to become a typhoon.{{cite JTWC|date=September 25, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=11|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210925000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 25, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-25-0300-wp2021prog.txt Alt URL]{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 8 for Typhoon Mindulle (2116)|publisher=Japan Meteorological Agency|date=September 25, 2021|access-date=September 25, 2021|archive-url=https://archive.today/20210925033314/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=September 25, 2021|url-status=live}} Mindulle started to rapidly intensify as it quickly intensified into a Category 2-equivalent typhoon. Its eye expanded but became ragged due to the presence of dry air.{{cite JTWC|date=September 25, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=12|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210925000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 25, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-25-0910-wp2021prog.txt Alt URL] Mindulle continued its rapid intensification, as it further intensified into a Category 4-equivalent typhoon at 15:00 UTC. Its eye became well-defined and at 03:00 UTC the next day, it became a Category 5-equivalent super typhoon, making it the third super typhoon of this season. Satellite imagery showed that the typhoon had developed a well defined {{cvt|15|nmi}} eye and deepening of the central core.{{cite JTWC|date=September 26, 2021|type=prog|designation=20W|name=Mindulle|category=STY|no=15|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210926000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 26, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-26-0300-wp2021prog.txt Alt URL]

At 15:00 UTC, Mindulle weakened into a Category 4-equivalent super typhoon as the eye and the convective structure started to degrade. It also underwent an eyewall replacement cycle, as it developed another eyewall.{{cite JTWC|date=September 26, 2021|type=prog|designation=20W|name=Mindulle|category=STY|no=17|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210926000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 26, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-26-1430-wp2021prog.txt Alt URL] At 03:00 UTC of September 27, the JTWC further downgraded the system to a Category 3-equivalent typhoon,{{cite JTWC|date=September 27, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=18|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210927000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 27, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-26-2100-wp2021prog.txt Alt URL] and six hours later, the agency had further downgraded it to a Category 2-equivalent typhoon because of the effects of the eyewall replacement cycle and the increasing presence of dry air.{{cite JTWC|date=September 27, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=20|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210927000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 27, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-27-0830-wp2021prog.txt Alt URL] At 15:00 UTC of September 28, Mindulle re-intensified into a Category 3-equivalent typhoon, as it moved over favorable conditions. Satellite imagery showed that the typhoon continued to struggle to intensify. Its {{cvt|20|nmi}} eye had steadily shrunk but it remained cloud covered and ragged.{{cite JTWC|date=September 28, 2021|access-date=September 29, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=25|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210928000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 28, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-28-1440-wp2021prog.txt Alt URL] By the next day at 03:00 UTC, the JTWC re-upgraded it to a Category 4-equivalent typhoon as the eye cleared out again.{{cite JTWC|date=September 28, 2021|access-date=September 29, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=27|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-url=https://archive.today/20210929041121/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=September 29, 2021}} At 21:00 UTC of September 29, it rapidly weakened and by 15:00 UTC the next day, it weakened from a Category 3-equivalent typhoon to a Category 1-equivalent typhoon. Cool dry air and cool sea-surface temperatures were responsible for the weakening.{{cite JTWC|date=September 29, 2021|access-date=October 1, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=30|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210929000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 29, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-29-2100-wp2021prog.txt Alt URL]{{cite JTWC|date=September 30, 2021|access-date=October 1, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=31|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210930000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 30, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-30-0250-wp2021prog.txt Alt URL]{{cite JTWC|date=September 30, 2021|access-date=October 1, 2021|type=prog|designation=20W|name=Mindulle|category=TY|no=33|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20210930000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=September 30, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-30-1400-wp2021prog.txt Alt URL] At 21:00 UTC of October 1, the JTWC issued its final warning as it downgraded to a tropical storm.{{cite JTWC|date=October 1, 2021|access-date=October 2, 2021|type=warn|designation=20W|name=Mindulle|category=TS|no=38-Final|url=https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-url=https://web.archive.org/web/20211001000000/https://www.metoc.navy.mil/jtwc/products/wp2021prog.txt|archive-date=October 1, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-01-2040-wp2021web.txt Alt URL] Three hours later, JMA also issued its final warning, as it became extratropical cyclone, off the coast of Hokkaido.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq51.rjtd..txt|title=JRSMC Tropical Cyclone Advisory|publisher=Japan Meteorological Agency|date=October 2, 2021|access-date=October 2, 2021|archive-url=https://archive.today/20211002025430/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq51.rjtd..txt|archive-date=October 2, 2021|url-status=live}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=September 22

|Dissipated=September 25

|Image=Dianmu 2021-09-23 0620Z.jpg

|Track=Dianmu 2021 track.png

|10-min winds=35

|1-min winds=35

|Pressure=1000

}}

{{main|Tropical Storm Dianmu (2021)}}

On September 21 at 18:00 UTC, the JMA noted a westward-moving low-pressure area over the South China Sea near the Philippines.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210921/180000/A_WWJP27RJTD211800_C_RJTD_20210921203417_35.txt|title=JMA Warning and Summary 211800|publisher=Japan Meteorological Agency|date=September 21, 2021|access-date=September 24, 2021|archive-url=https://archive.today/20210922033032/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210921/180000/A_WWJP27RJTD211800_C_RJTD_20210921203417_35.txt|archive-date=September 22, 2021|url-status=live}} Three hours later, the JTWC recognized this system.{{cite JTWC|date=September 21, 2021|access-date=September 24, 2021|type=|title=Tropical Weather Advisory for Western and Southern Pacific Ocean|reissued=1|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20210921000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=September 21, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-21-2110-abpwweb.txt Alt URL] By 15:00 UTC the next day, the JTWC upgraded it to a tropical depression without issuing a TCFA for the system, as it rapidly improved its convective structure and developed a low-level circulation center;{{cite JTWC|date=September 22, 2021|access-date=September 24, 2021|type=prog||category=TD|designation=21W|name=Twenty One|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp2121prog.txt|archive-url=https://archive.today/20210922152829/https://www.wis-jma.go.jp/d/o/PGTW/Alphanumeric/Warning/Tropical_cyclone/20210922/150000/A_WDPN32PGTW221500_C_RJTD_20210922150031_22.txt|archive-date=September 22, 2021}} the JMA did the same three hours later.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210922/180000/A_WWJP27RJTD221800_C_RJTD_20210922202617_33.txt|title=JMA Warning and Summary 221800|publisher=Japan Meteorological Agency|date=September 22, 2021|access-date=September 24, 2021|archive-url=https://archive.today/20210923024444/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210922/180000/A_WWJP27RJTD221800_C_RJTD_20210922202617_33.txt|archive-date=September 23, 2021|url-status=live}} On September 23 at 06:00 UTC, the JMA upgraded it to a tropical storm and named it as Dianmu as it continued to move westward and come closer to the Vietnamese coastline.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Tropical Cyclone Prognostic Reasoning No. 2 for Tropical Storm Dianmu (2115)|publisher=Japan Meteorological Agency|date=September 23, 2021|access-date=September 24, 2021|archive-url=https://archive.today/20210923085045/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=September 23, 2021|url-status=live}} The JTWC did the same thing, three hours later.{{cite JTWC|date=September 23, 2021|access-date=September 24, 2021|type=prog||category=TS|designation=21W|name=Dianmu|no=4|url=https://www.metoc.navy.mil/jtwc/products/wp2121prog.txt|archive-url=https://web.archive.org/web/20210923000000/https://www.metoc.navy.mil/jtwc/products/wp2121prog.txt|archive-date=September 23, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-09-23-0910-wp2121prog.txt Alt URL] At 15:00 UTC, the JTWC issued its last warning on the system as it made landfall near Da Nang, Vietnam, with its low-level circulation center being hampered following landfall.{{cite JTWC|date=September 23, 2021|access-date=September 24, 2021|type=warn|category=TS|designation=21W|name=Dianmu|no=5-FINAL|url=https://www.metoc.navy.mil/jtwc/products/wp2121web.txt|archive-url=https://web.archive.org/web/20210923000000/https://www.metoc.navy.mil/jtwc/products/wp2121web.txt|archive-date=September 23, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-23-1550-wp2121web.txt Alt URL] At 06:00 UTC on September 24, the JMA downgraded it to a tropical depression as it moved further inland.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|title=RSMC Tropical Cyclone Advisory|publisher=Japan Meteorological Agency|date=September 24, 2021|access-date=September 24, 2021|archive-url=https://archive.today/20210924081319/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq50.rjtd..txt|archive-date=September 24, 2021|url-status=live}}

Dianmu caused a total of 8 deaths, of which 6 occurred in Thailand and 2 occurred in Vietnam.{{Cite news|last=Chi|first=Quỳnh|date=September 29, 2021|title=6 người thiệt mạng, 2 người mất tích trong trận lũ lụt do bão nhiệt đới Dianmu ở Thái Lan|language=vi|work=Vietnam Television|url=https://vtv.vn/the-gioi/6-nguoi-thiet-mang-2-nguoi-mat-tich-trong-tran-lu-lut-do-bao-nhiet-doi-dianmu-o-thai-lan-20210929051041435.htm|access-date=December 30, 2021}}{{Cite news|date=September 23, 2021|title=Vớt ve chai trên hồ thủy lợi, 2 anh em bị đuối nước|language=vi|work=Sài Gòn Giải Phóng|url=https://www.sggp.org.vn/vot-ve-chai-tren-ho-thuy-loi-2-anh-em-bi-duoi-nuoc-763536.html|access-date=December 30, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=October 5

|Dissipated=October 10

|Image=Lionrock 2021-10-08 0548Z.jpg

|Track=Lionrock 2021 track.png

|10-min winds=35

|1-min winds=45

|Pressure=994

}}

{{main|Tropical Storm Lionrock (2021)}}

On October 2, the JTWC noted an area of convection located approximately {{convert|495|nmi}} east of Davao, Philippines{{cite JTWC|date=October 2, 2021|access-date=October 4, 2021|type=|title=Significant Tropical Weather for the Western and South Pacific Oceans|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20211002000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=October 2, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-02-0600-abpwweb.txt Alt URL] The next day, PAGASA had already classified the system as a tropical depression and named it Lannie.{{Cite PAGASA|date=October 4, 2021|name=Lannie|type=tcb|no=6|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin.pdf|url-status=live|archive-date=2015-04-03|archive-url=https://web.archive.org/web/20150403161251/http://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin.pdf}} [https://archive.org/download/pagasa-21-TC12/PAGASA_21-TC12_Lannie_TCB%2301.pdf Alt URL] Lannie made its first landfall on Bucas Grande Island at 04:30 PHT (October 3, 20:00 UTC). It then made an additional seven landfalls: ones in Cagdianao in the Dinagat Islands, Liloan and Padre Burgos in Southern Leyte, Mahanay Island and Getafe in Bohol, San Fernando in Cebu, Guihulngan in Negros Oriental, and its last two landfalls at Iloc Island and El Nido, Palawan.{{Cite AV media|url=https://www.facebook.com/PAGASA.DOST.GOV.PH/videos/933895370817814|title=Press Briefing: Tropical Depression "#LanniePH" Monday, 5 PM October 4, 2021|date=October 4, 2021|last=Rojas|first=Ariel|language=fil|publisher=PAGASA}}{{Cite web|title=Tropical Depression Lannie set to exit but LPA nears PAR|url=https://www.rappler.com/nation/weather/tropical-depression-lannie-lpa-pagasa-forecast-october-6-2021-5am|access-date=October 10, 2021|website=Rappler|date=October 5, 2021|language=en}} At 14:30 UTC of October 4, the JTWC re-issued a TCFA for the system, as it moved over the South China Sea.{{cite JTWC|date=October 4, 2021|access-date=October 5, 2021|type=tcfa|designation=92W||url=https://www.metoc.navy.mil/jtwc/products/wp9221web.txt|archive-url=https://web.archive.org/web/20211005000000/https://www.metoc.navy.mil/jtwc/products/wp9221web.txt|archive-date=October 5, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-04-1430-wp9221web.txt Alt URL] At 06:00 UTC of October 5, the JMA recognized it as a tropical depression.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 050600|publisher=Japan Meteorological Agency|date=October 5, 2021|access-date=October 5, 2021|archive-url=https://archive.today/20211005083519/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=October 5, 2021|url-status=live}} At 11:00 PHT (03:00 UTC) of October 6, the PAGASA issued its final warning.{{Cite PAGASA|date=October 6, 2021|access-date=October 7, 2021|name=Lannie|type=tcb|no=15-FINAL|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin.pdf|url-status=live|archive-date=2015-04-03|archive-url=https://web.archive.org/web/20150403161251/http://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin.pdf}} [https://archive.org/details/pagasa-21-TC12/PAGASA_21-TC12_Lannie_TCB%2315-FINAL Alt URL] At 09:00 UTC of the next day, the JTWC upgraded from a monsoonal depression to a tropical depression. It was designated as 22W. Before landfall in Hainan, the JMA upgraded it to a tropical storm and named it Lionrock at 18:00 UTC.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20211007/180000/A_WTPQ30RJTD071800_C_RJTD_20211007202016_14.txt|title=RSMC Prognostic Reasoning No.4 for Tropical Storm Lionrock (2117)|publisher=Japan Meteorological Agency|date=October 7, 2021|access-date=October 8, 2021|archive-url=https://archive.today/20211008024949/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20211007/180000/A_WTPQ30RJTD071800_C_RJTD_20211007202016_14.txt|archive-date=October 8, 2021|url-status=live}}

Lionrock continued its trajectory, and between 09:00 UTC and 15:00 UTC of October 8, it made its first landfall over the island of Hainan.{{cite JTWC|date=October 8, 2021|access-date=October 10, 2021|type=prog|category=TS|no=5|designation=22W|name=Lionrock|url=https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-url=https://web.archive.org/web/20211008000000/https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-date=October 8, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-08-0910-wp2221prog.txt Alt URL]{{cite JTWC|date=October 8, 2021|access-date=October 10, 2021|type=prog|category=TS|no=6|designation=22W|name=Lionrock|url=https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-url=https://web.archive.org/web/20211008000000/https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-date=October 8, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-08-1510-wp2221prog.txt Alt URL] After making landfall, it briefly intensified a bit before weakening to its original intensity at 21:00 UTC.{{cite JTWC|date=October 8, 2021|access-date=October 10, 2021|type=prog|category=TS|no=7|designation=22W|name=Lionrock|url=https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-url=https://web.archive.org/web/20211008000000/https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-date=October 8, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-08-2110-wp2221prog.txt Alt URL] At 09:00 UTC of the next day, it crossed the island completely and entered the Gulf of Tonkin.{{cite JTWC|date=October 9, 2021|access-date=October 10, 2021|type=prog|category=TS|no=9|designation=22W|name=Lionrock|url=https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-url=https://web.archive.org/web/20211008000000/https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-date=October 8, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-09-0820-wp2221prog.txt Alt URL] On October 10, at 09:00 UTC, the JTWC downgraded it to a tropical depression and issued its last warning, as it made landfall near Cat Bi International Airport and its convection became disorganized over land.{{cite JTWC|date=October 10, 2021|access-date=October 10, 2021|type=warn|category=TD|no=13-FINAL|designation=22W|name=Lionrock|url=https://www.metoc.navy.mil/jtwc/products/wp2221prog.txt|archive-url=https://archive.today/20211010083734/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn31.pgtw..txt|archive-date=October 10, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=October 7

|Dissipated=October 14

|Image=Kompasu 2021-10-13 0600Z.jpg

|Track=Kompasu 2021 track.png

|10-min winds=55

|1-min winds=60

|Pressure=975

}}

{{main|Tropical Storm Kompasu}}

On October 6 of 18:00 UTC, the JMA noted that a low-pressure area had formed that was embedded in a large monsoonal circulation to the north of Palau.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211006/180000/A_WWJP27RJTD061800_C_RJTD_20211006203004_82.txt|title=JMA Warning and Summary 061800|publisher=Japan Meteorological Agency|date=October 6, 2021|access-date=October 7, 2021|archive-url=https://archive.today/20211007040009/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211006/180000/A_WWJP27RJTD061800_C_RJTD_20211006203004_82.txt|archive-date=October 7, 2021|url-status=live}} The system developed into a tropical depression at 00:00 UTC of the next day.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 070000|publisher=Japan Meteorological Agency|date=October 7, 2021|access-date=October 7, 2021|archive-url=https://archive.today/20211007035848/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=October 7, 2021|url-status=live}} At 09:00 UTC (17:00 PHT), the PAGASA issued its first bulletin for the first tropical depression and assigned it the name Maring.{{Cite PAGASA|date=October 7, 2021|name=Maring|type=tcb|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%231_maring.pdf}}{{dead link|date=August 2023|bot=medic}}{{cbignore|bot=medic}} [https://archive.org/download/pagasa-21-TC13/PAGASA_21-TC13_Maring_TCB%2301.pdf Alt URL] The JMA also noted the persistence of another, nearby tropical depression to its northeast, later named Nando.{{cite web|date=October 7, 2021|title=JMA Warning and Summary 070600|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-url=https://archive.today/20211007090201/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=October 7, 2021|access-date=October 7, 2021|publisher=Japan Meteorological Agency|url-status=live}} As it is embedded in the same monsoonal depression and due to its proximity, Nando began to merge with Maring, and therefore formed a rather broad and large circulation. This prompted the JMA to upgrade the overall system to a tropical storm, and was named Kompasu.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 4 for Tropical Storm Kompasu (2118)|publisher=Japan Meteorological Agency|date=October 8, 2021|access-date=October 8, 2021|archive-url=https://archive.today/20211008083111/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=October 8, 2021|url-status=live}} However at that time, the JTWC still considered the system as two separate disturbances and issued separate TCFAs later in the day for both depressions, albeit noting the possibility of merging.{{Cite JTWC|date=October 8, 2021|type=tcfa|designation=93W|url=https://www.metoc.navy.mil/jtwc/products/wp9321web.txt|url-status=dead|archive-date=2021-09-02|archive-url=https://archive.today/20210902012716/https://www.metoc.navy.mil/jtwc/products/wp9321web.txt}} [https://wiki.chlod.net/jtwc/text/2021-10-08-1540-wp9321web.txt Alt URL]{{Cite JTWC|date=October 8, 2021|type=tcfa|designation=94W|url=https://www.metoc.navy.mil/jtwc/products/wp9421web.txt|url-status=dead|archive-date=2021-04-12|archive-url=https://web.archive.org/web/20210412125054/https://www.metoc.navy.mil/jtwc/products/wp9421web.txt}} [https://wiki.chlod.net/jtwc/text/2021-10-08-1950-wp9421web.txt Alt URL] The JTWC later considered the entire system as merged with their first warning for Kompasu.{{Cite JTWC|type=prog|category=TS|designation=24W|no=1|name=Kompasu|url=https://www.metoc.navy.mil/jtwc/products/wp2421prog.txt}}{{dead link|date=April 2025|bot=medic}}{{cbignore|bot=medic}} [https://wiki.chlod.net/jtwc/prog/2021-10-10-0840-wp2421prog.txt Alt URL] At midnight of October 11, the JMA upgraded it to a severe tropical storm, as it attained good cloud characteristics.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|title=RSMC Prognostic Reasoning No. 15 for Severe Tropical Storm Kompasu (2118)|publisher=Japan Meteorological Agency|date=October 11, 2021|access-date=October 11, 2021|archive-url=https://archive.today/20211011032424/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq31.rjtd..txt|archive-date=October 11, 2021|url-status=live}} At 12:10 UTC (20:10 PHT), Kompasu made its first landfall near Fuga Island of Cagayan Province.{{Cite PAGASA|date=October 11, 2021|name=Maring|intl_name=Kompasu|type=tcb|no=22|category=STS|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%231_maring.pdf}}{{dead link|date=August 2023|bot=medic}}{{cbignore|bot=medic}} [https://archive.org/details/pagasa-21-TC13/PAGASA_21-TC13_Maring_TCB%2322 Alt URL] At 05:00 PHT of October 13 (21:00 UTC of October 12), the PAGASA issued its final bulletin as its exited the PAR and continued towards Hainan.{{Cite PAGASA|date=October 12, 2021|name=Maring|intl_name=Kompasu|type=tcb|no=29-FINAL|category=STS|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%231_maring.pdf}}{{dead link|date=August 2023|bot=medic}}{{cbignore|bot=medic}} [https://archive.org/details/pagasa-21-TC13/PAGASA_21-TC13_Maring_TCB%2329-FINAL Alt URL] Between 03:00 and 09:00 UTC of October 13, Kompasu had made landfall over the east coast of Hainan.{{Cite JTWC|date=October 13, 2021|access-date=October 14, 2021|type=prog|category=TS|designation=24W|no=12|name=Kompasu|url=https://www.metoc.navy.mil/jtwc/products/wp2421prog.txt|archive-url=https://archive.today/20211013025717/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt|archive-date=October 13, 2021}}{{Cite JTWC|date=October 13, 2021|access-date=October 14, 2021|type=prog|category=TS|designation=24W|no=13|name=Kompasu|url=https://www.metoc.navy.mil/jtwc/products/wp2421prog.txt|archive-url=https://archive.today/20211013085856/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn33.pgtw..txt|archive-date=October 13, 2021}} By 18:00 UTC, the JMA downgraded it to a tropical storm, as it crossed the entire island and entered the Gulf of Tonkin, as its convection had rapidly weakened because of the rough terrain of the island.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20211013/180000/A_WTPQ31RJTD131800_C_RJTD_20211013200017_83.txt|title=RSMC Prognostic Reasoning No. 26 for Tropical Storm Kompasu (2118)|publisher=Japan Meteorological Agency|date=October 13, 2021|access-date=October 14, 2021|archive-url=https://archive.today/20211014025713/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20211013/180000/A_WTPQ31RJTD131800_C_RJTD_20211013200017_83.txt|archive-date=October 14, 2021|url-status=live}}{{Cite JTWC|date=October 13, 2021|access-date=October 14, 2021|type=prog|category=TS|designation=24W|no=15|name=Kompasu|url=https://www.metoc.navy.mil/jtwc/products/wp2421prog.txt|archive-url=https://web.archive.org/web/20211013000000/https://www.metoc.navy.mil/jtwc/products/wp2421prog.txt|archive-date=October 13, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-13-2100-wp2421prog.txt Alt URL] At 09:00 UTC of the next day, the JTWC issued its final warning followed by downgrading to a tropical depression, as its convection had diminished and the low-level circulation center had been weakened significantly because of the increasing vertical wind shear and dry air, despite not making landfall over northern Vietnam.{{Cite JTWC|date=October 14, 2021|type=warn|category=TD|designation=24W|no=18-FINAL|name=Kompasu|url=https://www.metoc.navy.mil/jtwc/products/wp2421prog.txt|archive-url=https://archive.today/20211014093329/https://tgftp.nws.noaa.gov/data/raw/wt/wtpn33.pgtw..txt|archive-date=October 14, 2021}} The JMA issued its final warning after downgrading it to a tropical depression at 18:00 UTC.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211014/120000/A_WWJP27RJTD141200_C_RJTD_20211014142544_10.txt|title=JMA Warning and Summary 141200|publisher=Japan Meteorological Agency|date=October 14, 2021|access-date=October 15, 2021|archive-url=https://web.archive.org/web/20211015114642/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211014/120000/A_WWJP27RJTD141200_C_RJTD_20211014142544_10.txt|archive-date=October 15, 2021}}{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211014/180000/A_WWJP27RJTD141800_C_RJTD_20211014202616_10.txt|title=JMA Warning and Summary 141800|publisher=Japan Meteorological Agency|date=October 14, 2021|access-date=October 15, 2021|archive-url=https://web.archive.org/web/20211015114646/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211014/180000/A_WWJP27RJTD141800_C_RJTD_20211014202616_10.txt|archive-date=October 15, 2021}}

As of October 31, the NDRRMC has confirmed a total of 43 deaths, along with 16 people still missing. Total estimated damages of both infrastructure and agriculture is topped to ₱6.39 billion (US$126.5 million).{{cite report|title=SitRep No. 20 for Severe Tropical Storm Maring (2021)|url=https://monitoring-dashboard.ndrrmc.gov.ph/page/reports/situational-report-for-tc-maring-2021|date=October 31, 2021|publisher=NDRRMC|access-date=October 31, 2021|archive-date=October 19, 2021|archive-url=https://web.archive.org/web/20211019140002/https://monitoring-dashboard.ndrrmc.gov.ph/page/reports/situational-report-for-tc-maring-2021|url-status=dead}} In Hong Kong, one person was killed and 21 people were injured.{{cite news|url=https://hongkongfp.com/2021/10/13/typhoon-kompasu-hong-kong-downgrades-storm-to-t3-signal-transport-set-to-resume/|title=Typhoon Kompasu: Hong Kong downgrades storm to T3 signal, transport set to resume|publisher=Hong Kong Free Post|date=October 13, 2021|access-date=October 15, 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=October 7

|Dissipated=October 8

|Image=Nando 2021-10-08 0127Z.jpg

|Track=Nando 2021 track.png

|10-min winds=30

|Prewinds=<

|WarningCenter=PAGASA

|Pressure=1002

}}

On 00:00 UTC of October 7, the JMA began monitoring on a tropical depression that had developed to the north of Palau, that was embedded in the same monsoonal circulation as Tropical Depression Maring.{{cite web|date=October 7, 2021|title=JMA Warning and Summary 070000|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-url=https://archive.today/20211007035848/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|url-status=dead|archive-date=October 7, 2021|access-date=October 7, 2021|publisher=Japan Meteorological Agency}} As the circulation moved inside the Philippine Area of Responsibility, the PAGASA began issuing advisories and assigned the local name Nando to the depression.{{Cite PAGASA|date=October 7, 2021|name=Nando|type=tcb|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%231_nando.pdf}}{{dead link|date=August 2023|bot=medic}}{{cbignore|bot=medic}} [https://archive.org/download/pagasa-21-TC14/PAGASA_21-TC14_Nando_TCB%2301.pdf Alt URL] By the next day, the JMA stopped tracking the system after it began to merge with Maring, which subsequently became Tropical Storm Kompasu.{{cite web|date=October 7, 2021|title=JMA Warning and Summary 080000|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-url=https://archive.today/20211008024456/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|url-status=dead|archive-date=October 8, 2021|access-date=October 8, 2021|publisher=Japan Meteorological Agency}} The PAGASA issued its final bulletin on the system on October 9.{{Cite PAGASA|date=October 9, 2021|name=Nando|type=tcb|no=5-FINAL|category=TD|url=https://archive.org/download/pagasa-21-TC14/PAGASA_21-TC14_Nando_TCB%2305-FINAL.pdf}} The JTWC issued separate TCFAs for two invests in the monsoonal depression that contained Maring and Nando — Invests 93W and 94W, respectively. As the two merged, the JTWC cancelled the TCFA for Invest 93W and soon began issuing a single tropical cyclone warning for the overall system.{{Cite JTWC|date=October 9, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans|url=https://www.metoc.navy.mil/jtwc/products/wp9421web.txt|archive-url=https://web.archive.org/web/20211009000000/https://www.metoc.navy.mil/jtwc/products/wp9421web.txt|archive-date=October 9, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-09-1950-wp9421web.txt Alt URL]

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=October 8

|Dissipated=October 16

|Image=Namtheun 2021-10-16 0225Z.jpg

|Track=Namtheun 2021 track.png

|10-min winds=50

|1-min winds=55

|Pressure=996

}}

On October 8, the JTWC noted an area of convection persisted approximately {{cvt|289|nmi}} from Wake Island, which had a defined low-level circulation with a good outflow.{{Cite JTWC|date=October 8, 2021|access-date=October 10, 2021|type=|title=Significant Tropical Weather Advisory for the Western and the South Pacific Oceans|reissued=1|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20211008000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=October 8, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-08-0050-abpwweb.txt Alt URL] The JMA later recognized the same area of convection as a tropical depression on October 9.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 090600|publisher=Japan Meteorological Agency|date=October 9, 2021|access-date=October 10, 2021|archive-url=https://archive.today/20211009093843/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=October 9, 2021|url-status=live}} At 14:00 UTC the same day, the JTWC issued a TCFA for the invest as it developed a flaring convection which was circulating over the obscured LLCC.{{Cite JTWC|date=October 9, 2021|access-date=October 10, 2021|type=tcfa|designation=95W|url=https://www.metoc.navy.mil/jtwc/products/wp9521web.txt|archive-url=https://web.archive.org/web/20211009000000/https://www.metoc.navy.mil/jtwc/products/wp9521web.txt|archive-date=October 9, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-09-1440-wp9521web.txt Alt URL] By midnight of the next day, the JMA upgraded it to a tropical storm and named it Namtheun.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq32.rjtd..txt|title=RSMC Prognostic Reasoning No. 3 for Tropical Storm Namtheun (2119)|publisher=Japan Meteorological Agency|date=October 10, 2021|access-date=October 10, 2021|archive-url=https://archive.today/20211010032533/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq32.rjtd..txt|archive-date=October 10, 2021|url-status=live}} The JTWC recognized it as a tropical depression, three hours later,{{Cite JTWC|date=October 10, 2021|access-date=October 10, 2021|type=prog|category=TD|designation=23W|name=Namtheun|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-url=https://archive.today/20211010033843/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn32.pgtw..txt|archive-date=October 10, 2021}} and six hours later, the JTWC upgraded it to a tropical storm.{{Cite JTWC|date=October 10, 2021|access-date=October 10, 2021|type=prog|category=TS|designation=23W|name=Namtheun|no=2|url=https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-url=https://web.archive.org/web/20211010000000/https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-date=October 10, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-10-0840-wp2321prog.txt Alt URL] Namtheun managed to maintain its intensity for two days, until at 09:00 UTC of October 13, it was downgraded to a tropical depression by the JTWC, as it started moving westwards because of the presence of a subtropical ridge towards the southeast of the system. Satellite imagery showed that the deep convection had been displaced towards the northeast and the LLCC of the system had become less defined.{{Cite JTWC|date=October 13, 2021|access-date=October 14, 2021|type=prog|category=TD|designation=23W|name=Namtheun|no=14|url=https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-url=https://web.archive.org/web/20211013000000/https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-date=October 13, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-13-0840-wp2321prog.txt Alt URL] However at 15:00 UTC of the next day, the JTWC re-upgraded it to a tropical storm, as it entered over warm sea-surface temperatures which allowed the system to maintain its intensity despite high wind shear. Satellite imagery also indicated that it developed subtropical characteristics.{{Cite JTWC|date=October 14, 2021|access-date=October 15, 2021|type=prog|category=TS|designation=23W|name=Namtheun|no=19|url=https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-url=https://web.archive.org/web/20211014000000/https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-date=October 14, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-14-1450-wp2321prog.txt Alt URL] Unexpectedly, Namtheun further intensified into a severe tropical storm according to JMA at 06:00 UTC of October 16, and a Category 1-equivalent typhoon according to JTWC at 09:00 UTC of October 16.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq32.rjtd..txt|title=RSMC Prognostic Reasoning No. 28 for Severe Tropical Storm Namtheun (2119)|publisher=Japan Meteorological Agency|date=October 16, 2021|access-date=October 16, 2021|archive-url=https://archive.today/20211016081644/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq32.rjtd..txt|archive-date=October 16, 2021|url-status=live}}{{Cite JTWC|date=October 16, 2021|type=prog|category=TY|designation=23W|name=Namtheun|no=26|url=https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-url=https://archive.today/20211016091421/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn32.pgtw..txt|archive-date=October 16, 2021}} Satellite imagery depicted that the system had developed a compact core with improved convection structure near its center. It also developed an eye-like feature. The weakening of the vertical wind shear was main reason for the intensification and also the presence of marginally favorable sea-surface temperatures ({{cvt|26–27|C|F}}). A few hours later, both JMA and JTWC downgraded to a tropical storm, as its convection had weakened significantly because of further cooling of sea-surface temperatures and strengthening of the wind shear.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq32.rjtd..txt|title=RSMC Prognostic Reasoning No. 29 for Tropical Storm Namtheun (2119)|publisher=Japan Meteorological Agency|date=October 16, 2021|access-date=October 18, 2021|archive-url=https://archive.today/20211016141839/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq32.rjtd..txt|archive-date=October 16, 2021|url-status=live}}{{Cite JTWC|date=October 16, 2021|access-date=October 18, 2021|type=prog|category=TS|designation=23W|name=Namtheun|no=27|url=https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-url=https://web.archive.org/web/20211016000000/https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-date=October 16, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-16-1450-wp2321prog.txt Alt URL] Namtheun managed its intensity as it continued north-northwards but since it was interacting with the baroclinic zone, it started its extratropical transition between 00:00 and 15:00 UTC.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq52.rjtd..txt|title=RSMC Tropical Cyclone Advisory|publisher=Japan Meteorological Agency|date=October 17, 2021|access-date=October 18, 2021|archive-url=https://archive.today/20211017033551/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq52.rjtd..txt|archive-date=October 17, 2021|url-status=live}}{{Cite JTWC|date=October 17, 2021|access-date=October 18, 2021|type=warn|category=TS|designation=23W|name=Namtheun|no=31-FINAL|url=https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-url=https://web.archive.org/web/20211017000000/https://www.metoc.navy.mil/jtwc/products/wp2321prog.txt|archive-date=October 17, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-16-1450-wp2321prog.txt Alt URL] For the next several days, the system moved eastward across the North Pacific, before undergoing explosive intensification and developing into a bomb cyclone on October 21, reaching an extratropical peak of {{convert|951|mbar|inHg}}, while situated off the coast of the Pacific Northwest.{{cite web|url=https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive_maps.php?arcdate=10/21/2021&selmap=2021102115&maptype=satsfcnps|title=WPC Surface Analysis valid for 10/21/2021 at 15 UTC|website=wpc.ncep.noaa.gov|publisher=Weather Prediction Center|date=October 21, 2021|access-date=October 28, 2021|url-status=live|archive-url=https://web.archive.org/web/20211028080547/https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive_maps.php?arcdate=10/21/2021&selmap=2021102115&maptype=satsfcnps |archive-date=October 28, 2021 }} Afterward, the system curved northward and then north-northwestward, while gradually weakening, before being absorbed into another approaching extratropical cyclone from the west, late on October 22.{{cite web|url=https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive_maps.php?arcdate=10/22/2021&selmap=2021102221&maptype=satsfcnps|title=WPC Surface Analysis valid for 10/22/2021 at 21 UTC|website=wpc.ncep.noaa.gov|publisher=Weather Prediction Center|date=October 22, 2021|access-date=October 28, 2021|url-status=live|archive-url=https://web.archive.org/web/20211028080547/https://www.wpc.ncep.noaa.gov/archives/web_pages/sfc/sfc_archive_maps.php?arcdate=10/22/2021&selmap=2021102221&maptype=satsfcnps |archive-date=October 28, 2021 }} Namtheun's extratropical remnant brought heavy rain and powerful winds to the Pacific Northwest.{{cite news|url=https://www.newsweek.com/bomb-cyclone-strongest-storm-us-northwest-history-america-weather-1641598|title='Bomb Cyclone' Approaches as U.S. Readies For 'Strongest Storm in Northwest History'|author=Tom Fish|work=Newsweek|date=October 22, 2021|access-date=October 28, 2021}}{{cite news|url=https://www.q13fox.com/weather/fascinating-bomb-cyclone-to-put-on-show-out-in-pacific-ocean|title=Fascinating 'bomb cyclone' to put on show out in Pacific Ocean|author=Scott Sistek|work=Fox13 Seattle|date=October 20, 2021|access-date=October 28, 2021}}

{{Clear}}

{{section update|date=September 2024}}

{{Infobox hurricane small

|Basin=WPac

|Formed=October 23

|Dissipated=November 4

|Image=Malou 2021-10-28 0345Z.jpg

|Track=Malou 2021 track.png

|10-min winds=75

|1-min winds=85

|Pressure=965

}}

On October 20, the JTWC noted an area of convection approximately {{cvt|574|nmi}} east of Guam. Infrared satellite imagery found that it formed a flaring convection which was displaced to the northwest from the actual center,{{cite JTWC|date=October 20, 2021|access-date=October 25, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20211020000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=October 20, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-20-1900-abpwweb.txt Alt URL] but at 06:00 UTC the next day, the JTWC discontinued giving advisories to the area of convection, as its convection had completely dissipated.{{cite JTWC|date=October 21, 2021|access-date=October 25, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20211021000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=October 21, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-21-0600-abpwweb.txt Alt URL] On the same day at 18:00 UTC, the JMA recognized the same area of convection, as a low pressure area.{{Cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211021/180000/A_WWJP25RJTD211800_C_RJTD_20211021202817_38.txt|title=JMA Warning and Summary 240600|publisher=Japan Meteorological Agency|date=October 21, 2021|access-date=October 25, 2021|archive-url=https://web.archive.org/web/20211025033557/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211021/180000/A_WWJP25RJTD211800_C_RJTD_20211021202817_38.txt|archive-date=October 25, 2021}} At 15:00 UTC of October 22, the JTWC started giving advisories for the area of convection as it developed sufficient convection and a poorly defined low-level circulation.{{cite JTWC|date=October 22, 2021|access-date=October 25, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20211021000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=October 21, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-22-1450-abpwweb.txt Alt URL] On the next day at 18:00 UTC, the JMA upgraded it to a tropical depression,{{Cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211023/180000/A_WWJP25RJTD231800_C_RJTD_20211023202416_73.txt|title=JMA Warning and Summary 231800|publisher=Japan Meteorological Agency|date=October 23, 2021|access-date=October 25, 2021|archive-url=https://web.archive.org/web/20211025043828/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211023/180000/A_WWJP25RJTD231800_C_RJTD_20211023202416_73.txt|archive-date=October 25, 2021}} and three and a half hour later, the JTWC issued a TCFA.{{cite JTWC|date=October 23, 2021|access-date=October 25, 2021|type=tcfa|designation=98W|url=https://www.metoc.navy.mil/jtwc/products/wp9821web.txt|archive-url=https://web.archive.org/web/20211023000000/https://www.metoc.navy.mil/jtwc/products/wp9821web.txt|archive-date=October 23, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-23-2110-wp9821web.txt Alt URL] At 03:00 UTC of October 24, the JTWC upgraded to a tropical depression and designated as 25W.{{cite JTWC|date=October 24, 2021|access-date=October 25, 2021|type=prog|category=TD|designation=25W|name=Twenty Five|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp2521prog.txt|archive-url=https://web.archive.org/web/20211024000000/https://www.metoc.navy.mil/jtwc/products/wp2521prog.txt|archive-date=October 24, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-24-0310-wp2521prog.txt Alt URL] Later at 18:00 UTC, the JTWC upgraded it to a tropical storm, as the organization of the convection had increased.{{cite JTWC|date=October 24, 2021|access-date=October 25, 2021|type=prog|category=TS|designation=25W|name=Twenty Five|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp2521prog.txt|archive-url=https://web.archive.org/web/20211024000000/https://www.metoc.navy.mil/jtwc/products/wp2521prog.txt|archive-date=October 24, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-24-2040-wp2521prog.txt Alt URL] Six hours later, the JMA did the same thing and named it Malou.{{Cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Prognostic Reasoning No. 7 for Tropical Storm Malou (2120)|publisher=Japan Meteorological Agency|date=October 25, 2021|access-date=October 25, 2021|archive-url=https://archive.today/20211025020827/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=October 25, 2021|url-status=live}} At midday of the next day, the JMA upgraded it to a severe tropical storm.{{Cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Prognostic Reasoning No. 13 for Severe Tropical Storm Malou (2120)|publisher=Japan Meteorological Agency|date=October 26, 2021|access-date=October 27, 2021|archive-url=https://archive.today/20211026141654/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=October 26, 2021|url-status=live}} Early on October 27, the JTWC upgraded it to a Category 1-equivalent typhoon, as it developed an eye-like feature wrapped around a ragged spiral bandings.{{cite JTWC|date=October 27, 2021|type=prog|category=TY|designation=25W|name=Malou|no=13|url=https://www.metoc.navy.mil/jtwc/products/wp2521prog.txt|archive-url=https://web.archive.org/web/20211027000000/https://www.metoc.navy.mil/jtwc/products/wp2521prog.txt|archive-date=October 27, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-27-0300-wp2521prog.txt Alt URL] At 18:00 UTC the same day, the JMA upgraded it to a typhoon.{{Cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20211027/180000/A_WTPQ30RJTD271800_C_RJTD_20211027194016_13.txt|title=RSMC Prognostic Reasoning No. 18 for Typhoon Malou (2120)|publisher=Japan Meteorological Agency|date=October 27, 2021|access-date=October 28, 2021|archive-url=https://archive.today/20211028025045/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20211027/180000/A_WTPQ30RJTD271800_C_RJTD_20211027194016_13.txt|archive-date=October 28, 2021|url-status=live}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=October 24

|Dissipated=October 27

|Image=26W 2021-10-26 0600Z.jpg

|Track=26W 2021 track.png

|10-min winds=30

|1-min winds=35

|Prewinds=<

|Pressure=1004

}}

At 00:00 UTC of October 22, the JMA noted the formation of a low-pressure area east of Mindanao.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211022/000000/A_WWJP25RJTD220000_C_RJTD_20211022023117_33.txt|title=JMA Warning and Summary 22000|publisher=Japan Meteorological Agency|date=October 22, 2021|access-date=October 25, 2021|archive-url=https://web.archive.org/web/20211025033723/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211022/000000/A_WWJP25RJTD220000_C_RJTD_20211022023117_33.txt|archive-date=October 25, 2021}} Two days later at 06:00 UTC, the JMA upgraded it to a tropical depression as it was located off the coast of the island of Palawan.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 240600|publisher=Japan Meteorological Agency|date=October 24, 2021|access-date=October 25, 2021|archive-url=https://archive.today/20211024091003/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=October 24, 2021|url-status=live}} On the same day, the JTWC noted the same low pressure area and gave a low chance of formation,{{cite JTWC|date=October 24, 2021|access-date=October 25, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20211024000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=October 24, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-24-0300-abpwweb.txt Alt URL] which was later upgraded to medium.{{cite JTWC|date=October 24, 2021|access-date=October 25, 2021|type=|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20211024000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=October 24, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-24-0630-abpwweb.txt Alt URL] At 05:30 UTC of October 25, the JTWC issued a TCFA for the system, as its convection had improved and developed a weakly defined LLCC.{{cite JTWC|date=October 25, 2021|access-date=October 27, 2021|type=tcfa|designation=99W|reissued=|url=https://www.metoc.navy.mil/jtwc/products/wp9921web.txt|archive-url=https://web.archive.org/web/20211025000000/https://www.metoc.navy.mil/jtwc/products/wp9921web.txt|archive-date=October 25, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-25-0630-wp9921web.txt Alt URL] On the next day, after re-issuing the TCFA at 05:00 UTC,{{cite JTWC|date=October 26, 2021|access-date=October 27, 2021|type=tcfa|designation=99W|reissued=1|url=https://www.metoc.navy.mil/jtwc/products/wp9921web.txt|archive-url=https://web.archive.org/web/20211025000000/https://www.metoc.navy.mil/jtwc/products/wp9921web.txt|archive-date=October 25, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-25-0630-wp9921web.txt Alt URL] the JTWC upgraded it to a tropical depression at 09:00 UTC as it was located off the coast of Vietnam. Satellite imagery found that its LLCC had become defined however the convective structure continued to remain disorganized.{{cite JTWC|date=October 26, 2021|access-date=October 27, 2021|type=prog|category=TD|designation=25W|name=Twenty Six|no=1|url=https://www.metoc.navy.mil/jtwc/products/wp2621prog.txt|archive-url=https://web.archive.org/web/20211026000000/https://www.metoc.navy.mil/jtwc/products/wp2621prog.txt|archive-date=October 26, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-26-0750-wp2621prog.txt Alt URL] Between 15:00 UTC of October 26 and 03:00 UTC of October 27, the system made landfall near Nha Trang{{cite JTWC|date=October 26, 2021|access-date=October 27, 2021|type=prog|category=TD|designation=25W|name=Twenty Six|no=3|url=https://www.metoc.navy.mil/jtwc/products/wp2621prog.txt|archive-url=https://web.archive.org/web/20211026000000/https://www.metoc.navy.mil/jtwc/products/wp2621prog.txt|archive-date=October 26, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-10-26-2120-wp2621prog.txt Alt URL]{{cite JTWC|date=October 27, 2021|type=warn|category=TD|designation=25W|name=Twenty Six|no=4-FINAL|url=https://www.metoc.navy.mil/jtwc/products/wp2621web.txt|archive-url=https://web.archive.org/web/20211027000000/https://www.metoc.navy.mil/jtwc/products/wp2621web.txt|archive-date=October 27, 2021}} [https://wiki.chlod.net/jtwc/text/2021-10-27-0300-wp2621web.txt Alt URL] and at 03:00 UTC, the JTWC issued its final advisory as its convection had rapidly disorganized after landfall, as it moved over the mountainous terrain of Vietnam.

Over 50,000 sea vehicles with over 261,000 people in it were already informed on the brewing system and its path, according to a meeting about the depression on October 25. Over 3,200 officer soldiers and 270 public vehicles were also put on standby. The areas between Thừa Thiên Huế and Khánh Hòa received heavy rainfall from the system.{{Cite news|date=October 25, 2021|title=Sẵn sàng ứng phó với áp thấp nhiệt đới ở Biển Đông|language=vi|trans-title=Ready to cope with tropical depression in the East Sea|work=Sài Gòn Giải Phóng|url=https://www.sggp.org.vn/san-sang-ung-pho-voi-ap-thap-nhiet-doi-o-bien-dong-770795.html|access-date=October 25, 2021|url-status=live|archive-url=https://web.archive.org/web/20211025052950/https://www.sggp.org.vn/san-sang-ung-pho-voi-ap-thap-nhiet-doi-o-bien-dong-770795.html|archive-date=October 25, 2021}} Total damage of the flooding associated with 26W was 328 billion VND (US$14.4 million).{{cite report|url=https://phongchongthientai.mard.gov.vn/FileUpload/2024-02/q8pgliDf-0CQaGXqThiệt%20hại%202021%20web.pdf|title=CÔNG BỐ SỐ LIỆU THIỆT HẠI DO THIÊN TAI GÂY RA TRONG PHẠM VI CẢ NƯỚC NĂM 2021|work=Vietnam Disaster Management|date=February 21, 2024|access-date=February 22, 2024|language=Vietnamese}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=November 28

|Dissipated=December 3

|Image=Nyatoh 2021-12-03 0000Z.jpg

|Track=Nyatoh 2021 track.png

|10-min winds=100

|1-min winds=130

|Pressure=925

}}

Early of November 26, the JTWC noted the formation of an area of convection located {{cvt|752|nmi}} east-southeast of Guam.{{cite JTWC|date=November 26, 2021|access-date=November 29, 2021|type=|title=Significant Tropical Weather Advisory for the Western and the Southern Pacific Reissued|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20211129000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=November 29, 2021}} [https://wiki.chlod.net/jtwc/text/2021-11-26-0730-abpwweb.txt Alt URL] On the next day, the JMA recognized the same system as a low pressure area.{{Cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211127/180000/A_WWJP27RJTD271800_C_RJTD_20211127202917_36.txt|title=JMA Warning and Summary 271800|publisher=Japan Meteorological Agency|date=November 27, 2021|access-date=November 29, 2021|archive-url=https://web.archive.org/web/20211129030707/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211127/180000/A_WWJP27RJTD271800_C_RJTD_20211127202917_36.txt|archive-date=November 29, 2021}} At 06:00 UTC of November 28, the JTWC issued a TCFA as it developed a poorly defined center,{{cite JTWC|date=November 28, 2021|access-date=November 29, 2021|type=tcfa|designation=93W|url=https://www.metoc.navy.mil/jtwc/products/wp9321web.txt|archive-url=https://web.archive.org/web/20211129000000/https://www.metoc.navy.mil/jtwc/products/wp9321web.txt|archive-date=November 29, 2021}} [https://wiki.chlod.net/jtwc/text/2021-11-28-0550-wp9321web.txt Alt URL] and by midnight of November 28, the JMA upgraded the system to a tropical depression.{{Cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 290000|publisher=Japan Meteorological Agency|date=November 29, 2021|access-date=November 29, 2021|archive-url=https://archive.today/20211129023735/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=November 29, 2021|url-status=live}} The JTWC followed suit and designated it as 27W at 15:00 UTC the same day.{{cite JTWC|date=November 29, 2021|access-date=November 30, 2021|type=prog|no=1|category=TD|designation=27W|name=Twenty Seven|url=https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-url=https://web.archive.org/web/20211130000000/https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-date=November 30, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-11-29-1530-wp2721prog.txt Alt URL] Six hours later, the JTWC further upgraded it to a tropical storm.{{cite JTWC|date=November 29, 2021|access-date=November 30, 2021|type=prog|no=2|category=TS|designation=27W|name=Twenty Seven|url=https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-url=https://web.archive.org/web/20211130000000/https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-date=November 30, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-11-29-2100-wp2721prog.txt Alt URL] At midnight of the next day, the JMA followed suit and named it as Nyatoh.{{Cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Tropical Cyclone Prognostic Reasoning No. 3 for Tropical Storm 2121 (Nyatoh)|publisher=Japan Meteorological Agency|date=November 30, 2021|access-date=November 30, 2021|archive-url=https://web.archive.org/web/20211130024516/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=November 30, 2021}} On 00:00 UTC of December 1, the JMA further upgraded it to a severe tropical storm.{{Cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Tropical Cyclone Prognostic Reasoning No. 7 for Severe Tropical Storm 2121 (Nyatoh)|publisher=Japan Meteorological Agency|date=December 1, 2021|access-date=December 2, 2021|archive-url=https://archive.today/20211201015137/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=December 1, 2021|url-status=live}} Fifteen hours later, the JTWC declared it a typhoon and upgraded it to a Category 1-equivalent status, as Nyatoh developed an eye according to microwave imagery.{{cite JTWC|date=December 1, 2021|access-date=December 2, 2021|type=prog|no=9|category=TY|designation=27W|name=Nyatoh|url=https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-url=https://web.archive.org/web/20211201000000/https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-date=December 1, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-12-01-1450-wp2721prog.txt Alt URL] The JMA followed suit at 18:00 UTC.{{Cite web|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=RSMC Tropical Cyclone Prognostic Reasoning No. 10 for Typhoon 2121 (Nyatoh)|publisher=Japan Meteorological Agency|date=December 1, 2021|access-date=December 2, 2021|archive-url=https://archive.today/20211202024947/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Tropical_cyclone/20211201/180000/A_WTPQ30RJTD011800_C_RJTD_20211201193245_90.txt|archive-date=December 2, 2021|url-status=live}} By 03:00 UTC the next day, it further intensified into a Category 2-equivalent typhoon as it briefly formed a ragged eye.{{cite JTWC|date=December 2, 2021|type=prog|no=11|category=TY|designation=27W|name=Nyatoh|url=https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-url=https://web.archive.org/web/20211202000000/https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-date=December 2, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-12-02-0250-wp2721prog.txt Alt URL] Later that day, Nyatoh unexpectedly rapidly intensified to a Category 4-equivalent super typhoon due to jet interaction. It later reached peak intensity with 10-minute sustained winds of 185 km/h (115 mph) and a pressure of {{cvt|925|mb|inHg|sigfig=4|abbr=on|comma=off}}.{{cite JTWC|date=December 3, 2021|type=prog|no=11|category=TY|designation=27W|name=Nyatoh|url=https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-url=https://web.archive.org/web/20211203000000/https://www.metoc.navy.mil/jtwc/products/wp2721prog.txt|archive-date=December 3, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-12-03-0250-wp2721prog.txtt Alt URL] However, this peak was short-lived as strong wind shear, dry air, and cooler sea surface temperatures shredded the system apart and rapidly weakened to a Category 1-equivalent typhoon at 18:00 UTC. On December 4 at 06:35 UTC, the JMA declared Nyatoh a remnant low.{{citation needed|date=December 2021}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=December 11

|Dissipated=December 21

|Image=Rai 2021-12-16 0159Z.jpg

|Track=Rai 2021 path.png

|10-min winds=105

|1-min winds=150

|Pressure=915

}}

{{main|Typhoon Rai}}

At 00:00 UTC of December 12, the JMA noted the existence of a tropical depression in the vicinity of the Caroline Islands.{{Cite report|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211212/000000/A_WWJP27RJTD120000_C_RJTD_20211212023332_88.txt|title=WWJP27 RJTD 111800|date=December 12, 2021|publisher=Japan Meteorological Agency|access-date=December 12, 2021|archive-url=https://archive.today/20211212083913/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211212/000000/A_WWJP27RJTD120000_C_RJTD_20211212023332_88.txt|archive-date=December 12, 2021|url-status=live}} Two hours later, the JTWC issued a TCFA for the developing system, noting a "promising" environment for further development.{{Cite JTWC|date=December 12, 2021|type=tcfa|designation=96W|url=https://www.metoc.navy.mil/jtwc/products/wp9621web.txt|url-status=dead|archive-date=2021-07-04|archive-url=https://web.archive.org/web/20210704100716/https://www.metoc.navy.mil/jtwc/products/wp9621web.txt}} [https://wiki.chlod.net/jtwc/text/2021-12-12-0250-wp9621web.txt Alt URL] On the next day, the JMA upgraded the system into a tropical storm and gave it the international name, Rai.{{Cite report|url=https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|title=WTPQ30 RJTD 130600|date=December 12, 2021|publisher=Japan Meteorological Agency|access-date=December 12, 2021|archive-url=https://archive.today/20211213083552/https://tgftp.nws.noaa.gov/data/raw/wt/wtpq30.rjtd..txt|archive-date=December 13, 2021|url-status=live}}

The PAGASA issued its first tropical cyclone advisory for the developing storm on December 12.{{Cite PAGASA|date=December 12, 2021|type=tca|no=1|category=TD|url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/tca/TCA%231.pdf}} Warnings for Palau and the Federated States of Micronesia were issued by the Guam National Weather Service by December 13.{{Cite web|title=Tropical Depression 28W Advisory Number 1|url=https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=2&glossary=0|url-status=dead|archive-url=https://web.archive.org/web/20211213060727/https://forecast.weather.gov/product.php?site=GUM&issuedby=PQ1&product=TCP&format=CI&version=2&glossary=0|archive-date=December 13, 2021|access-date=13 December 2021|website=forecast.weather.gov|publisher=National Weather Service, Tiyan}} On the next day, Rai continued intensifying, and the Japan Meteorological Agency upgraded it to a severe tropical storm.{{Cite web |date=February 4, 2022 |title=RSMC Tropical Cyclone Best Track Name 2122 Rai (2122) |url=https://tgftp.nws.noaa.gov/data/raw/ax/axpq20.rjtd..txt |archive-url=https://archive.today/20220204181653/https://tgftp.nws.noaa.gov/data/raw/ax/axpq20.rjtd..txt |archive-date=February 4, 2022 |access-date=March 23, 2022 |website=Japan Meteorological Agency |via=National Oceanic and Atmospheric Agency}}

Rai then entered the Philippine Area of Responsibility on December 14 and was given the name Odette by the PAGASA.{{Cite news |last=Arceo |first=Acor |date=December 14, 2021 |title=Severe Tropical Storm Odette enters PAR |work=Rappler |url=https://www.rappler.com/nation/weather/severe-tropical-storm-odette-enters-philippine-area-responsibility-december-14-2021/ |access-date=March 23, 2022}} The PAGASA raised Tropical Cyclone Wind Signal #1 over parts of Eastern Visayas and Northern Mindanao.{{citation needed|date=March 2022}} Later that same day, the JMA upgraded Rai to a typhoon. The PAGASA{{citation needed|date=March 2022}} and the JTWC later followed suit and also upgraded Rai to a typhoon. Rai then rapidly intensified overnight, becoming a Category 5-equivalent super typhoon on the morning of December 16.{{Cite web |title=trackfile.txt |url=https://www.nrlmry.navy.mil/tcdat/tc2021/WP/WP282021/txt/trackfile.txt |archive-url=https://web.archive.org/web/20211215012419/https://www.nrlmry.navy.mil/tcdat/tc2021/WP/WP282021/txt/trackfile.txt |url-status=dead |archive-date=December 15, 2021 |access-date=March 23, 2022 |website=United States Naval Research Laboratory}}

Rai then made its first landfall on General Luna, Surigao del Norte at 1:30PM PHT.{{Cite web|title=TROPICAL CYCLONE BULLETIN #. 11 Typhoon "OdettePh"|url=https://twitter.com/dost_pagasa/status/1471374885771710466|access-date=December 16, 2021|website=Twitter|language=en}} A few minutes later, it struck Cagdianao, Dinagat Island.{{Cite web|date=December 16, 2021|title=Typhoon Odette makes first 2 landfalls in Siargao, Dinagat|url=https://www.rappler.com/nation/weather/typhoon-odette-pagasa-forecast-december-16-2021-2pm/|access-date=December 16, 2021|website=RAPPLER|language=en-US}} It then made a third landfall in Liloan, Southern Leyte.{{Cite web |url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2312_odette.pdf|access-date=December 16, 2021|archive-url=https://web.archive.org/web/20211216113637/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2312_odette.pdf|archive-date=Dec 16, 2021|title=TROPICAL CYCLONE BULLETIN NO. 12 Typhoon "ODETTE"|date=Dec 16, 2021}} It continued to cross the islands and later struck Padre Burgos, Southern Leyte and President Carlos P. Garcia, Bohol.{{Cite tweet|title=#OdettePH made its 4th landfall over Padre Burgos, Southern Leyte at 5:40 p.m., according to @dost_pagasa|user=abscbnnews|number=1471430933605539841|access-date=December 16, 2021|website=Twitter|language=en}}{{Cite tweet|title= #OdettePH made its 5th landfall over Pres. Carlos P. Garcia, Bohol at 6:30 p.m., according to @dost_pagasa|user=abscbnnews|number=1471437907852361730|access-date=December 16, 2021|website=Twitter|language=en}} It then soon struck Bien Unido, Bohol.{{Cite web |date=16 Dec 2021 |title=TROPICAL CYCLONE BULLETIN NO. 13 Typhoon "ODETTE" |url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2313_odette.pdf |archive-url=https://web.archive.org/web/20211217004531/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2313_odette.pdf |archive-date=Dec 17, 2021 |access-date=December 17, 2021}} It lost super typhoon intensity and then struck Carcar, Cebu.{{Cite web |date=16 Dec 2021 |title=TROPICAL CYCLONE BULLETIN NO. 14 Typhoon "ODETTE" |url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2314_odette.pdf |archive-url=https://web.archive.org/web/20211216155601/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2314_odette.pdf |archive-date=Dec 16, 2021 |access-date=December 16, 2021}} It made an eighth landfall on La Libertad, Negros Oriental.{{Cite web |date=17 Dec 2021 |title=TROPICAL CYCLONE BULLETIN NO. 15 Typhoon "ODETTE" |url=https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2315_odette.pdf |archive-url=https://web.archive.org/web/20211217004537/https://pubfiles.pagasa.dost.gov.ph/tamss/weather/bulletin/TCB%2315_odette.pdf |archive-date=Dec 17, 2021 |access-date=December 17, 2021}} It made a final landfall in Roxas, Palawan.

The system then left the PAR by 12:40 PHT (04:40 UTC).{{Cite news|date=December 18, 2021|title=After leaving trail of destruction, Typhoon Odette exits PAR|work=Rappler|url=https://www.rappler.com/nation/weather/typhoon-odette-exits-philippine-area-responsibility-december-18-2021/|url-status=live |access-date=December 19, 2021|archive-url=https://web.archive.org/web/20211218232832/https://www.rappler.com/nation/weather/typhoon-odette-exits-philippine-area-responsibility-december-18-2021/|archive-date=December 18, 2021}} For the first time since Typhoon Rammasun in 2014 and the third after Pamela of 1954 and the aforementioned storm, Rai unexpectedly attained Category 5-equivalent super typhoon status in the South China Sea, due to the favorable environment in that region, at 21:00 UTC on December 18, as it underwent a secondary period of rapid intensification.{{Cite report|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|title=Prognostic Reasoning for Typhoon 28W (Rai) Warning NR 024|date=December 18, 2021|publisher=United States Joint Typhoon Warning Center|access-date=December 19, 2021|archive-url=https://archive.today/20211213030529/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=December 13, 2021|url-status=dead}}

By 03:00 UTC the next day, Rai again weakened below Category 5-equivalent super typhoon intensity, while turning in a west-northwesterly direction. Its eye was cloud-filled by this time, with the storm rapidly weakening afterward.{{Cite report|url=https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|title=Prognostic Reasoning for Typhoon 28W (Rai) Warning NR 025|date=December 19, 2021|publisher=United States Joint Typhoon Warning Center|access-date=December 19, 2021|archive-url=https://archive.today/20211213030529/https://tgftp.nws.noaa.gov/data/raw/wd/wdpn31.pgtw..txt|archive-date=December 13, 2021|url-status=dead}}

As of January 6, 2022, 410 fatalities have been reported,{{Cite news|date=December 20, 2021|title=Typhoon Odette: Damage, areas hit, and relief updates|work=Rappler|url=https://www.rappler.com/nation/updates-news-typhoon-odette-philippines-december-2021/|access-date=December 20, 2021}} with 111 alone being located in Bohol.{{Cite tweet|number=1472838877815525376|user=onenewsph|title=Governor Arthur Yap says there are 99 casualties in Bohol due to Typhoon #OdettePH, after 48 LGUs submitted their reports. He adds that there are 78 individuals injured, while 18 are missing.|author=One News}} On March 23, PAGASA revised their tropical cyclone scale. Rai (Odette) was considered as a super typhoon.{{cite news | url=https://news.abs-cbn.com/amp/news/03/23/22/pagasa-redefines-super-typhoon-tweaks-wind-signals | title=PAGASA redefines 'super typhoon', revises wind signals | publisher=ABS-CBN News | date=March 23, 2022 | access-date=March 28, 2022}}

{{clear}}

{{Infobox hurricane small

|Basin=WPac

|Formed=December 13

|Dissipated=December 17

|Image=JMA TD 41 2021-12-14 0630Z.jpg

|Track=29W 2021 track.png

|10-min winds=30

|Prewinds=<

|1-min winds=30

|Pressure=1006

}}

{{See also|2021–2022 Malaysian floods}}

On December 14, the JMA upgraded a westward-moving low-pressure area to a tropical depression.{{Cite web|date=December 13, 2021|title=Warning and Summary 131800|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211213/180000/A_WWJP27RJTD131800_C_RJTD_20211213202216_33.txt|url-status=dead|archive-url=https://archive.today/20211214025258/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20211213/180000/A_WWJP27RJTD131800_C_RJTD_20211213202216_33.txt|archive-date=December 14, 2021|access-date=December 20, 2021|website=Japan Meteorological Agency}}{{Cite web|date=December 14, 2021|title=Warning and Summary 140000|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|url-status=dead|archive-url=https://archive.today/20211214025206/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=December 14, 2021|access-date=December 20, 2021|website=Japan Meteorological Agency}} The JTWC began monitoring the system by the next day, noting the presence of a consolidated low-level circulation within the system.{{Cite web|date=December 15, 2021|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans from 150600Z–160600Z December 2021|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|url-status=dead|archive-url=https://web.archive.org/web/20210425144930/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=April 25, 2021|access-date=December 20, 2021|website=Joint Typhoon Warning Center}} The system's chances of developing into a tropical cyclone slowly increased,{{Cite web|date=December 15, 2021|title=Significant Tropical Weather Advisory for the Western and South Pacific Oceans Reissued from 151830Z–160600Z December 2021|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|url-status=dead|archive-url=https://web.archive.org/web/20210425144930/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=April 25, 2021|access-date=December 20, 2021|website=Joint Typhoon Warning Center}} and on December 16 at 17:30 UTC, the JTWC issued a TCFA for the system despite the outflow of Typhoon Rai partially exposing the system's low-level circulation.{{Cite JTWC|date=December 16, 2021|type=tcfa|designation=97W|url=https://www.metoc.navy.mil/jtwc/products/wp9721web.txt|archive-url=https://web.archive.org/web/20211216000000/https://www.metoc.navy.mil/jtwc/products/wp9721web.txt|url-status=dead|archive-date=December 16, 2021|access-date=December 20, 2021}} [https://wiki.chlod.net/jtwc/text/2021-12-16-1730-wp9721web.txt Alt URL] By 21:00 UTC, the JTWC upgraded the system to a tropical depression, assigning it the designation 29W as it continued over marginally favorable developmental conditions.{{Cite JTWC|date=December 16, 2021|type=prog|category=TD|designation=29W|no=1|name=Twentynine|url=https://www.metoc.navy.mil/jtwc/products/wp2921prog.txt|archive-url=https://web.archive.org/web/20211216000000/https://www.metoc.navy.mil/jtwc/products/wp2921prog.txt|url-status=dead|archive-date=December 16, 2021|access-date=December 20, 2021}} [https://wiki.chlod.net/jtwc/prog/2021-12-16-1940-wp2921prog.txt Alt URL] Shortly after, at 23:00 UTC, the depression made landfall north of Kuantan and began to weaken, prompting the JTWC to issue its final advisory on the system by the next day.{{Cite JTWC|date=December 17, 2021|type=warning|category=TD|designation=29W|no=2|name=Twentynine|url=https://www.metoc.navy.mil/jtwc/products/wp2921web.txt|archive-url=https://web.archive.org/web/20211217000000/https://www.metoc.navy.mil/jtwc/products/wp2921web.txt|url-status=dead|archive-date=December 17, 2021|access-date=December 20, 2021}} [https://wiki.chlod.net/jtwc/text/2021-12-17-0340-wp2921web.txt Alt URL] The JMA stopped monitoring the system on December 17 at 12:00 UTC.{{Cite web|date=December 17, 2021|title=Warning and Summary 170600|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|url-status=dead|archive-url=https://archive.today/20211217085329/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=December 17, 2021|access-date=December 20, 2021|website=Japan Meteorological Agency}}{{Cite web|date=December 17, 2021|title=Warning and Summary 171200|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|url-status=dead|archive-url=https://archive.today/20211217143146/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=December 17, 2021|access-date=December 20, 2021|website=Japan Meteorological Agency}}

After passing through Peninsular Malaysia, it reached the Straits of Malacca as a low-pressure system. Persistent and continuous heavy rains for more than 24 hours began on December 17, causing the worst flooding in Central Malaysia since 2014.{{Cite web|date=December 18, 2021|title=Thousands displaced by floods in Malaysia|url=https://www.reuters.com/markets/commodities/thousands-malaysia-displaced-after-non-stop-rainfall-2021-12-18/|publisher=Reuters|author=Rozanna Latiff|author2=Liz Lee|access-date=December 18, 2021|website=www.reuters.com}}{{Cite news|date=December 19, 2021|title=BERNAMA - One in 100 year event: Rainfall yesterday (Dec 18) equaled average monthly rainfall|work=Bernama|url=https://www.bernama.com/en/news.php?id=2035560|access-date=December 20, 2021|url-status=live|archive-url=https://web.archive.org/web/20211219154716/https://www.bernama.com/en/news.php?id=2035560|archive-date=December 19, 2021}} Floods were also reported in the states of Kelantan, Terengganu, Pahang, Perak, Negeri Sembilan and Malacca.

{{clear}}

File:JMA TD 01 2021-01-19 0512Z.jpg

• During January 19, the JMA reported that a tropical depression had developed to the east of Luzon, Philippines.{{cite web |title=WWJP27 RJTD 191800 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=January 20, 2021 |archive-url=https://archive.today/20210120022636/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |archive-date=January 20, 2021 |date=January 19, 2021 |url-status=live }} The precursor to the depression brought scattered showers and thunderstorms to Mindanao, Palawan, and Visayas on January 18.{{Cite web|url=https://www.pna.gov.ph/articles/1127664|title=LPA, ITCZ to bring scattered rains Monday|last=Arayata|first=Cristina|publisher=Philippine News Agency|website=pna.gov.ph|date=January 18, 2021|access-date=January 20, 2021}} The JMA, however, discontinued advisories for the system on the next day.{{Cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210120/120000/A_WWJP25RJTD201200_C_RJTD_20210120141618_69.txt|archive-url=https://web.archive.org/web/20210120152229/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210120/120000/A_WWJP25RJTD201200_C_RJTD_20210120141618_69.txt|archive-date=January 20, 2021|title=Warning and Summary 201200|publisher=Japan Meteorological Agency|date=January 20, 2021|access-date=January 20, 2021}} The depression also brought stormy weather to Luzon on January 20. The PAGASA warned residents of possible flash flooding and mudslides due to heavy rainfall.{{cite web |url=https://www.metoc.navy.mil/jtwc/jtwc.html |archive-url=https://web.archive.org/web/20171222221633/http://www.metoc.navy.mil/jtwc/jtwc.html |url-status=dead |archive-date=December 22, 2017 |title=Joint Typhoon Warning Center (JTWC) |website=Naval Meteorology and Oceanography Command}} {{nonspecific|date=August 2022}}{{Cite web|url=https://www.rappler.com/nation/weather/lpa-tail-end-frontal-system-pagasa-forecast-january-20-2021-4pm|title=Parts of Luzon rainy due to LPA off Aurora, tail-end of frontal system|last=Arceo|first=Acor|publisher=Rappler|website=rappler.com|date=January 20, 2021|access-date=January 21, 2021}} The system's precursor was associated with a frontal system, with its combined effects bringing heavy rainfall over much of Visayas, the Bicol Region, and Northern Mindanao, resulting in three deaths and agricultural damages of up to ₱642.5 million (US$13.2 million).{{cite web|title=SitRep No. 12 re Preparedness Measures and Effects for TEFS, LPAs, and ITCZ|url=https://ndrrmc.gov.ph/attachments/article/4142/Sitrep_No_12_TEFS_LPA_ITCZ_Update.pdf|agency=NDRRMC|date=January 29, 2021}}
• On March 9, a low-pressure area entered the Philippine Area of Responsibility, though it was not expected to develop at that time.{{Cite news |last=Flores |first=Helen |date=March 10, 2021 |title=Low-pressure area spotted off Davao |work=The Philippine Star |url=https://www.philstar.com/nation/2021/03/10/2083202/low-pressure-area-spotted-davao |access-date=March 14, 2021}}{{Cite news |last=Arceo |first=Acor |date=March 12, 2021 |title=LPA still 'less likely' to become tropical depression but rain persists |work=Rappler |url=https://www.rappler.com/nation/weather/low-pressure-area-pagasa-forecast-march-12-2021-11am |access-date=March 14, 2021}} On March 14, the low-pressure area intensified into a tropical depression over the Sulu Sea before quickly degenerating back into a low-pressure area.{{cite web |title=WWJP27 RJTD 140600 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=March 14, 2021 |archive-url=https://archive.today/20210314082819/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |archive-date=March 14, 2021 |format=TXT |date=March 14, 2021 |url-status=live }}{{cite web |title=WWJP27 RJTD 150000 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=March 15, 2021 |archive-url=https://archive.today/20210315045035/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |archive-date=March 15, 2021 |format=TXT |date=March 15, 2021 |url-status=live }} The system brought light to moderate rains over parts of the Philippines, with the PAGASA advising residents of the possibility of floods and landslides.{{Cite news |last=Vera-Ruiz |first=Ellayn De |date=March 12, 2021 |title=Rains to prevail over parts of PH due to LPA |work=Manila Bulletin |url=https://mb.com.ph/2021/03/12/rains-to-prevail-over-parts-of-ph-due-to-lpa/ |access-date=April 1, 2021}}
• On May 29, the JTWC issued a TCFA for a tropical disturbance that was roughly {{convert|622|nmi}} to the southeast of Guam, near the Nomoi Islands. The system gradually developed as it was experiencing warm sea surface temperatures and low vertical wind shear.{{Source-attribution|sentence=yes|{{Cite JTWC|date=May 29, 2021|type=tcfa|designation=90W|url=https://www.metoc.navy.mil/jtwc/products/wp9021web.txt|archive-url=https://web.archive.org/web/20210529000000/https://www.metoc.navy.mil/jtwc/products/wp9021web.txt|archive-date=May 29, 2021}} [https://wiki.chlod.net/jtwc/text/2021-05-29-0650-wp9021web.txt Alt URL] }} On the next day at 00:00 UTC, the JMA recognized the system as a tropical depression.{{Cite web|date=May 30, 2021|title=WWJP27 RJTD 300000|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|url-status=dead|archive-url=https://archive.today/20210530050230/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt?202105300502|archive-date=May 30, 2021|website=Japan Meteorological Agency}} On the same day, the JTWC cancelled the TCFA for the system as its structure degraded,{{Cite JTWC|date=May 30, 2021|type=tcfa|designation=90W|url=https://archive.today/2021.05.30080809/https://www.metoc.navy.mil/jtwc/products/wp9021web.txt|archive-url=https://archive.today/20210530080809/https://www.metoc.navy.mil/jtwc/products/wp9021web.txt|archive-date=May 30, 2021}} with the JMA last recognizing the system as a tropical depression on June 1 at 18:00 UTC.{{Cite web|date=June 1, 2021|title=WWJP27 RJTD 011800|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210601/180000/A_WWJP27RJTD011800_C_RJTD_20210601201617_37.txt|url-status=dead|archive-url=https://archive.today/20210602023140/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210601/180000/A_WWJP27RJTD011800_C_RJTD_20210601201617_37.txt|archive-date=June 2, 2021|access-date=June 8, 2021|work=Japan Meteorological Agency|via=Tokyo Global Information Centre}}
• On June 29, an area of convection formed {{cvt|425|nmi}} from Guam with satellite imagery revealing that the system had a deep convection with a weak low level circulation.{{cite web|url=https://wiki.chlod.net/jtwc/text/2021-06-29-0620-abpwweb.txt|title=SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS|publisher=Joint Typhoon Warning Center|date=June 29, 2021|access-date=June 30, 2021|archive-url=https://web.archive.org/web/20210630143435/https://wiki.chlod.net/jtwc/text/2021-06-29-0620-abpwweb.txt|archive-date=June 30, 2021}} Within a favorable environments with low-to-moderate wind shear, and warm sea surface temperatures, the system gradually became more organized with a more defined low level circulation. On June 30, the JTWC issued a TCFA for the system.{{cite web |title=Tropical Cyclone Formation Alert (Invest 95W) |url=https://www.metoc.navy.mil/jtwc/products/wp9521web.txt |publisher=Joint Typhoon Warning Center |access-date=June 30, 2021 |archive-url=https://archive.today/20210630105947/https://www.metoc.navy.mil/jtwc/products/wp9521web.txt |archive-date=June 30, 2021 |date=June 30, 2021 |url-status=dead }}{{cite web |title=WWJP27 RJTD 300000 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=June 30, 2021 |archive-url=https://archive.today/20210630110035/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210630/000000/A_WWJP27RJTD300000_C_RJTD_20210630021618_71.txt |archive-date=June 30, 2021 |date=June 30, 2021 |url-status=live }} On July 1, animated multispectral satellite imagery indicated a very broad and ill-defined low level circulation with convection being sheared to the south-southwest of the disturbance, which prompted the JTWC to cancel the system's TCFA and downgrade its development chances within the next day to low.{{Source-attribution|sentence=yes|{{Cite web|date=July 1, 2021|title=Tropical Cyclone Formation Alert Cancellation (Invest 95W)|url=https://www.metoc.navy.mil/jtwc/products/wp9521web.txt|url-status=dead|archive-url=https://web.archive.org/web/20210701034125/https://www.metoc.navy.mil/jtwc/products/wp9521web.txt|archive-date=July 1, 2021|access-date=July 1, 2021|website=Joint Typhoon Warning Center}} }} The JMA no longer considered it a tropical depression in their tropical disturbance summary advisories on the same day.{{cite web|title=WWJP27 RJTD 00Z|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|date=July 1, 2021|archive-url=https://archive.today/20210701030111/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=July 1, 2021|work=Japan Meteorological Agency|access-date=July 4, 2021|url-status=live}}
• On July 19, at 00:00 UTC, a tropical depression formed near {{coord|29|N|164|E}}, which was moving northwards at the speed of {{cvt|10|kn|round=5}}, according to the JMA.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 190000|publisher=Japan Meteorological Agency|date=July 19, 2021|access-date=July 19, 2021|archive-url=https://web.archive.org/web/20210719071244/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=July 19, 2021}} It lasted for two days until July 21, when it became a remnant low at 00:00 UTC.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 210000|publisher=Japan Meteorological Agency|date=July 21, 2021|access-date=July 21, 2021|archive-url=https://archive.today/20210721044919/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=July 21, 2021|url-status=live}}
• On July 28, at 00:00 UTC, the JMA noted a tropical depression near {{coord|29|N|152|E}}, which was moving northwards slowly.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210728/000000/A_WWJP27RJTD280000_C_RJTD_20210728021804_80.txt|title=WWJP27 RJTD 280000|publisher=Japan Meteorological Agency|date=July 28, 2021|access-date=July 28, 2021|archive-url=https://archive.today/20210728072115/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210728/000000/A_WWJP27RJTD280000_C_RJTD_20210728021804_80.txt|archive-date=July 28, 2021|url-status=live}}
• On July 30, at 00:00 UTC, the JMA noted a tropical depression near {{coord|28|N|142|E}}, which was moving northwestward slowly.{{Cite web|url=https://www.jma.go.jp/bosai/weather_map/#lang=en|title=気象庁｜天気図}}
• On July 31, a tropical depression formed over the open Pacific at 18:00 UTC.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 311800|publisher=Japan Meteorological Agency|date=July 31, 2021|access-date=August 2, 2021|archive-url=https://archive.today/20210731204812/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=July 31, 2021|url-status=live}} By August 1, at 05:30 UTC, the JTWC issued a TCFA for the system as it had an exposed low-level circulation with persistent disorganized convection.{{cite JTWC|date=August 1, 2021|type=tcfa|designation=96W|url=https://www.metoc.navy.mil/jtwc/products/wp9621web.txt|url-status=dead|archive-date=August 1, 2021|archive-url=https://archive.today/20210801081811/https://www.metoc.navy.mil/jtwc/products/wp9621web.txt}} The agency canceled the alert on the next day as it had little remaining convection and it had moved over cooler waters.
• On August 1, at 18:00 UTC, JMA noted a tropical depression near Taiwan.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=WWJP27 RJTD 011800|publisher=Japan Meteorological Agency|date=August 1, 2021|access-date=August 2, 2021|archive-url=https://archive.today/20210801232002/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=August 1, 2021|url-status=live}}
• The JMA began tracking a tropical depression that had formed to the east of Hainan on September 7.{{cite web |title=WWJP27 RJTD 070000 |url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |publisher=Japan Meteorological Agency |access-date=7 September 2021 |archive-url=https://archive.today/20210907051328/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt |archive-date=7 September 2021 |date=7 September 2021}} The system moved westward towards Vietnam and was last noted the next day.
• On September 27 of 06:00 UTC, the JMA noted the formation of a low-pressure area located to the east of Typhoon Mindulle.{{cite web|url=https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210927/060000/A_WWJP27RJTD270600_C_RJTD_20210927082018_49.txt|title=JMA Warning and Summary 270600|publisher=Japan Meteorological Agency|date=September 27, 2021|access-date=September 29, 2021|archive-url=https://archive.today/20210927150246/https://www.wis-jma.go.jp/d/o/RJTD/Alphanumeric/Warning/Warnings_and_weather_summary/20210927/060000/A_WWJP27RJTD270600_C_RJTD_20210927082018_49.txt|archive-date=September 27, 2021|url-status=live}} The JMA later upgraded it to a tropical depression, six hours later.{{cite web|url=https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|title=JMA Warning and Summary 271200|publisher=Japan Meteorological Agency|date=September 27, 2021|access-date=September 29, 2021|archive-url=https://archive.today/20210927150206/https://tgftp.nws.noaa.gov/data/raw/ww/wwjp27.rjtd..txt|archive-date=September 27, 2021|url-status=live}} At 01:00 UTC the next day, the JTWC recognized the system and gave a medium chance of formation.{{cite JTWC|date=September 28, 2021|access-date=September 29, 2021|type=|title=Significant Tropical Weather Advisory for the Western and Southern Pacific Ocean|reissued=1|url=https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-url=https://web.archive.org/web/20210928000000/https://www.metoc.navy.mil/jtwc/products/abpwweb.txt|archive-date=September 28, 2021}} [https://wiki.chlod.net/jtwc/text/2021-09-28-0050-abpwweb.txt Alt URL]

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{{See also|Tropical cyclone naming|History of tropical cyclone naming}}

Within the Northwest Pacific Ocean, both the Japan Meteorological Agency (JMA) and the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) assign names to tropical cyclones that develop in the Western Pacific, which can result in a tropical cyclone having two names.{{cite web|title=Monthly Tropical Cyclone Summary December 1999|access-date=October 1, 2013|last=Padgett |first= Gary|publisher=Australian Severe Weather|url=http://www.australiasevereweather.com/cyclones/2000/summ9912.htm|archive-url=https://web.archive.org/web/20120211074501/http://australiasevereweather.com/cyclones/2000/summ9912.htm|archive-date=February 11, 2012|url-status=live}} The Japan Meteorological Agency's RSMC Tokyo — Typhoon Center assigns international names to tropical cyclones on behalf of the World Meteorological Organization's Typhoon Committee, should they be judged to have 10-minute sustained windspeeds of {{convert|65|km/h|mph|abbr=on}}.{{cite web|title=Typhoon Committee Operational Manual 2013|url=http://www.wmo.int/pages/prog/www/tcp/documents/TCP-23EDITION2013.pdf|archive-url=https://web.archive.org/web/20130801020116/http://www.wmo.int/pages/prog/www/tcp/documents/TCP-23EDITION2012.pdf|publisher=World Meteorological Organization|archive-date=August 1, 2013|pages=37–38|date=February 21, 2013|author=The Typhoon Committee|access-date=October 1, 2013|url-status=live}} PAGASA names to tropical cyclones which move into or form as a tropical depression in their area of responsibility located between 135°E and 115°E and between 5°N and 25°N even if the cyclone has had an international name assigned to it. The names of significant tropical cyclones are retired, by both PAGASA and the Typhoon Committee. Should the list of names for the Philippine region be exhausted then names will be taken from an auxiliary list of which the first ten are published each season. Unused names are marked in {{tcname unused}}.

{{main article|List of retired Pacific typhoon names}}

During the season, 22 tropical storms developed in the Western Pacific and each one was named by the JMA, when the system was judged to have 10-minute sustained windspeeds of 65 kilometres per hour (40 mph). The JMA selected the names from a list of 140 names, that had been developed by the 14 members nations and territories of the ESCAP/WMO Typhoon Committee.{{cite journal|last1=Zhou |first1= Xiao|last2=Lei |first2= Xiaotu|year=2012|title=Summary of retired typhoons within the Western North Pacific Ocean|volume=1|issue=1|publisher=The Economic and Social Commission for Asia and the Pacific/World Meteorological Organization's Typhoon Committee|journal=Tropical Cyclone Research and Review|pages=23–32|issn=2225-6032|url=http://tcrr.typhoon.gov.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=7|access-date=December 21, 2014|doi=10.6057/2012TCRR01.03|archive-date=August 12, 2017|archive-url=https://web.archive.org/web/20170812172856/http://tcrr.typhoon.gov.cn/EN/article/downloadArticleFile.do?attachType=PDF&id=7|url-status=dead}} During the season, the names Surigae, Koguma, Cempaka and Nyatoh were used for the first time after they replaced Mujigae, Koppu, Melor and Meranti, which were retired following the 2015 and 2016 seasons.

In early 2023, the Typhoon Committee announced that the names Conson, Kompasu, and Rai would be removed from the naming lists and they will never be used again for another typhoon name.{{Cite web |date=April 30, 2023 |title=REPORT OF THE FIFTY-FIFTH SESSION OF TYPHOON COMMITTEE |url=https://typhooncommittee.org/55th/docs/final/TC55Report_FINAL.pdf |access-date=April 30, 2023 |website=Typhoon Committee}} In 2024, they were replaced by Luc-binh, Tokei, and Sarbul respectively.{{cite report |url=https://www.typhooncommittee.org/56th/docs/final/TC56_FINAL.pdf |title=Report of the Fifty-Sixth session of Typhoon Committee|date=March 25, 2024 |publisher=ESCAP/WMO Typhoon Committee |access-date=September 1, 2024}}

{{Main|List of retired Philippine typhoon names}}

During the season, PAGASA used its own naming scheme for the 15 tropical cyclones that either developed within or moved into their self-defined area of responsibility.{{cite web|title=Philippine Tropical Cyclone Names|publisher=Philippine Atmospheric, Geophysical and Astronomical Services Administration|access-date=January 30, 2021|url=http://bagong.pagasa.dost.gov.ph/learning-tools/philippine-tropical-cyclone-names|url-status=live|archive-url=https://web.archive.org/web/20210130084249/http://bagong.pagasa.dost.gov.ph/learning-tools/philippine-tropical-cyclone-names|archive-date=January 30, 2021}} This is the same list used during the 2017 season, except for Uwan and Verbena, which replaced Urduja and Vinta, respectively. No names were used for the first time this year.

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After the season, on March 21, 2022, PAGASA removed the names Jolina, Maring and Odette from its rotating naming lists due to the number of deaths and amount of damage they caused, and were replaced with Jacinto, Mirasol and Opong for the 2025 season.{{cite news |author1=De Vera-Ruiz, Ellalyn |title=PAGASA replaces names of 3 destructive cyclones in 2021 |url=https://mb.com.ph/2022/03/22/pagasa-replaces-names-of-3-destructive-cyclones-in-2021/ |work=Manila Bulletin |archive-url=https://web.archive.org/web/20220322121402/https://mb.com.ph/2022/03/22/pagasa-replaces-names-of-3-destructive-cyclones-in-2021/ |archive-date=March 22, 2022}}{{Cite web |title=Philippine Tropical Cyclone Names |url=https://bagong.pagasa.dost.gov.ph/learning-tools/philippine-tropical-cyclone-names |url-status=live |archive-url=https://web.archive.org/web/20220321075739/https://bagong.pagasa.dost.gov.ph/learning-tools/philippine-tropical-cyclone-names |archive-date=March 21, 2022 |access-date=March 21, 2022 |website=PAGASA}}

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This table summarizes all the systems that developed within or moved into the North Pacific Ocean, to the west of the International Date Line during 2021. The tables also provide an overview of a systems intensity, duration, land areas affected and any deaths or damages associated with the system.

{{Pacific areas affected (Top)|year=2021}}

|-

| TD || {{Sort|210119|January 19 – 20}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}} || bgcolor=#{{storm color|TD}}|{{convert|1008|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines || {{ntsp|13200000||$}} || {{nts|3}} ||

|-

| Dujuan (Auring) || {{Sort|210216|February 16 – 23}} || bgcolor=#{{storm color|TS}}|{{Sort|1|Tropical storm}} || bgcolor=#{{storm color|TS}}|{{convert|40|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TS}}|{{convert|996|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Palau, Philippines || {{ntsp|3290000||$}} || {{nts|1}} ||

|-

| TD || {{Sort|210314|March 14}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}} || bgcolor=#{{storm color|TD}}|{{convert|1006|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Surigae (Bising) || {{Sort|210412|April 12 – 24}} || bgcolor=#{{storm color|VITY}}|{{Sort|3|Violent typhoon}} || bgcolor=#{{storm color|VITY}}|{{convert|120|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|VITY}}|{{convert|895|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Caroline Islands, Palau, Sulawesi, Philippines || {{ntsp|10470000||$}} || {{nts|10}} ||

|-

| 03W (Crising) || {{Sort|210512|May 12 – 14}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{convert|30|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TD}}|{{convert|1002|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines || {{ntsp|486000||$}} || {{sort|0|None}} ||

|-

| Choi-wan (Dante) || {{Sort|210529|May 29 – June 5}} || bgcolor=#{{storm color|TS}}|{{Sort|1|Tropical storm}} || bgcolor=#{{storm color|TS}}|{{convert|40|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TS}}|{{convert|998|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Palau, Philippines, Taiwan, Japan || {{ntsp|6390000||$}} || {{ntsh|11}}11 ||

|-

| TD || {{Sort|210530|May 30 – 31}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1006|hPa|inHg|abbr=on|sigfig=4|comma=off}} || None || {{ntsh|0||$}}None|| {{sort|0|None}} ||

|-

| Koguma || {{Sort|210611|June 11 – 13}} || bgcolor=#{{storm color|TS}}|{{Sort|1|Tropical storm}} || bgcolor=#{{storm color|TS}}|{{convert|35|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TS}}|{{convert|996|hPa|inHg|abbr=on|sigfig=4|comma=off}} || South China, Vietnam, Laos || {{ntsp|12874000||$}}|| {{ntsh|1}}1 ||{{cite news|website=Vietnamnet|url=https://vietnamnet.vn/vn/thoi-su/bao-so-2-luot-qua-gay-thiet-hai-tai-thai-binh-hai-phong-745418.html|title=Bão số 2 lướt qua gây thiệt hại tại Thái Bình, Hải Phòng|date=June 13, 2021|access-date=June 13, 2021|language=vi}}

|-

| Champi || {{Sort|210620|June 20 – 27}} || bgcolor=#{{storm color|TY}}|{{Sort|3|Typhoon}} || bgcolor=#{{storm color|TY}}|{{convert|65|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TY}}|{{convert|980|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Mariana Islands || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| TD || {{Sort|210630|June 30}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1008|hPa|inHg|abbr=on|sigfig=4|comma=off}} || None || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| 07W (Emong) || {{Sort|210703|July 3 – 6}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{convert|30|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TD}}|{{convert|1004|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines, Taiwan || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| 08W || {{Sort|210705|July 5 – 8}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{convert|30|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TD}}|{{convert|1000|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines, Southern China, Vietnam || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| In-fa (Fabian) || {{Sort|210715|July 15 – 29}} || bgcolor=#{{storm color|VSTY}}|{{Sort|3|Very strong typhoon}} || bgcolor=#{{storm color|VSTY}}|{{convert|85|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|VSTY}}|{{convert|950|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines, Ryukyu Islands, Taiwan, China || {{ntsp|2040000000||$}} || {{nts|6}} ||

|-

| Cempaka || {{Sort|210717|July 17 – 25}} || bgcolor=#{{storm color|TY}}|{{Sort|3|Typhoon}} || bgcolor=#{{storm color|TY}}|{{convert|70|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TY}}|{{convert|980|hPa|inHg|abbr=on|sigfig=4|comma=off}} || South China, Vietnam || {{ntsp|4250000||$}} || {{nts|3}} ||{{Cite web|date=23 July 2021|title=众志成城抹灾痕！阳西县把台风造成损失降至最低|trans-title=Committed to wipe out the scars of disaster! Yangxi County minimizes the damage caused by the typhoon|url=http://www.yangxi.gov.cn/xw/yxxw/content/post_548504.html|website=阳西县人民政府网站 [Yangxi County People's Government]|language=zh}}{{Cite web|author=Lo, Clifford|author2=Leung, Christy|date=20 July 2021|title=Hong Kong hiker swept away by stream amid No 3 typhoon warning found dead after hours-long search by rescuers, divers|url=https://www.scmp.com/news/hong-kong/law-and-crime/article/3141781/hong-kong-rescuers-divers-search-hiker-swept-away|website=South China Morning Post|language=en}}{{Cite web|date=24 July 2021|title=Mường Lát (Thanh Hóa): Hơn 300 hộ dân sơ tán vì mưa lũ|trans-title=Muong Lat (Thanh Hoa): More than 300 households evacuated because of floods|url=http://phongchongthientai.mard.gov.vn/Pages/muong-lat-thanh-hoa--hon-300-ho-dan-so-tan-vi-mua-lu.aspx|website=Tổng cục Phòng chống thiên tai [General Department of Disaster Prevention]|language=vi}}

|-

| TD || {{Sort|210719|July 19 – 20}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1012|hPa|inHg|abbr=on|sigfig=4|comma=off}} || None || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Nepartak || {{Sort|210722|July 22 – 28}} || bgcolor=#{{storm color|TS}}|{{Sort|1|Tropical storm}} || bgcolor=#{{storm color|TS}}|{{convert|40|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TS}}|{{convert|990|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Japan || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| TD || {{Sort|210728|July 28 – 29}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1004|hPa|inHg|abbr=on|sigfig=4|comma=off}} || None || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| TD || {{Sort|210730|July 30 – August 1}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|998|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Japan || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| TD || {{Sort|210731|July 31 – August 3}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{convert|30|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TD}}|{{convert|998|hPa|inHg|abbr=on|sigfig=4|comma=off}} || None || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| TD || {{Sort|210801|August 1 – 3}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|996|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Ryukyu Islands, Taiwan || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| 12W || {{Sort|210802|August 2 – 6}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{convert|30|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TD}}|{{convert|1000|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Japan || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Lupit (Huaning) || {{Sort|210802|August 2 – 9}} || bgcolor=#{{storm color|TS}}|{{Sort|1|Tropical storm}} || bgcolor=#{{storm color|TS}}|{{convert|45|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TS}}|{{convert|984|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Vietnam, Southern China, Taiwan, Japan || {{ntsp|267000000||$}} || {{nts|6}} || {{cite news|website=The Liberty Times|url=https://news.ltn.com.tw/news/life/breakingnews/3633460|title=豪雨致災農損破4.2億 嘉義縣受損最重|trans-title=Heavy rains cause damage to farmers in 420 million disasters, and Chiayi County suffers the most|language=zh|date=August 10, 2021|access-date=August 11, 2021}}{{Cite news|last=Charlier|first=Philip|date=August 12, 2021|title=Body of graduate student found in flooded pavilion at scenic reservoir|work=Taiwan English News|url=https://taiwanenglishnews.com/body-of-graduate-student-found-in-flooded-pavilion-at-scenic-reservoir/|access-date=August 13, 2021|archive-date=August 12, 2021|archive-url=https://web.archive.org/web/20210812114555/https://taiwanenglishnews.com/body-of-graduate-student-found-in-flooded-pavilion-at-scenic-reservoir/|url-status=live}}{{Cite news|date=August 9, 2021|title=台風9号 岡山で1人死亡、島根では1人行方不明 けが人相次ぐ|language=Japanese|work=Mainichi Shimbun|url=https://mainichi.jp/articles/20210809/k00/00m/040/211000c|access-date=August 24, 2021|archive-date=August 12, 2021|archive-url=https://web.archive.org/web/20210812145242/https://mainichi.jp/articles/20210809/k00/00m/040/211000c|url-status=live}}

|-

| Mirinae (Gorio) || {{Sort|210803|August 3 – 10}} || bgcolor=#{{storm color|STS}}|{{Sort|1|Severe tropical storm}} || bgcolor=#{{storm color|STS}}|{{convert|50|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|STS}}|{{convert|980|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Japan, Western Canada || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Nida || {{Sort|210803|August 3 – 8}} || bgcolor=#{{storm color|STS}}|{{Sort|2|Severe tropical storm}} || bgcolor=#{{storm color|STS}}|{{convert|55|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|STS}}|{{convert|992|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Alaska || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Omais (Isang) || {{Sort|210810|August 10 – 23}} || bgcolor=#{{storm color|TS}}|{{Sort|1|Tropical storm}} || bgcolor=#{{storm color|TS}}|{{convert|45|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TS}}|{{convert|994|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Marshall Islands, Micronesia, Mariana Islands, Ryukyu Islands, South Korea || {{ntsh|0||$}} $13 million || {{sort|0|None}} ||

|-

| 17W || {{Sort|210901|September 1 – 4}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{convert|30|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TD}}|{{convert|1008|hPa|inHg|abbr=on|sigfig=4|comma=off}} || None || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Conson (Jolina) || {{Sort|210905|September 5 – 13}} || bgcolor=#{{storm color|STS}}|{{Sort|2|Severe tropical storm}} || bgcolor=#{{storm color|STS}}|{{convert|50|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|STS}}|{{convert|992|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines, Vietnam || {{ntsp|107000000||$}} || {{nts|25}} ||

|-

| Chanthu (Kiko) || {{Sort|210905|September 5 – 18}} || bgcolor=#{{storm color|VITY}}|{{Sort|3|Violent typhoon}} || bgcolor=#{{storm color|VITY}}|{{convert|115|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|VITY}}|{{convert|905|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines, Taiwan, Eastern China, South Korea, Japan || {{ntsp|30000000||$}} || {{sort|0|None}} ||

|-

| TD || {{Sort|210907|September 7 – 8}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1004|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Vietnam || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Mindulle || {{Sort|210922|September 22 – October 2}} || bgcolor=#{{storm color|VITY}}|{{Sort|3|Violent typhoon}} || bgcolor=#{{storm color|VITY}}|{{convert|105|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|VITY}}|{{convert|920|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Mariana Islands, Japan, Russian Far East || {{ntsh|0||$}}Minimal || {{sort|0|None}} ||

|-

| Dianmu || {{Sort|210922|September 22 – 25}} || bgcolor=#{{storm color|TS}}|{{Sort|1|Tropical storm}} || bgcolor=#{{storm color|TS}}|{{convert|35|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TS}}|{{convert|1000|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Vietnam, Laos, Cambodia || {{ntsh|0||$}}Unknown || {{nts|8}} ||

|-

| TD || {{Sort|210927|September 27 – October 2}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1004|hPa|inHg|abbr=on|sigfig=4|comma=off}} || None || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Lionrock (Lannie) || {{Sort|211005|October 5 – 10}} || bgcolor=#{{storm color|TS}}|{{Sort|1|Tropical storm}} || bgcolor=#{{storm color|TS}}|{{convert|35|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TS}}|{{convert|994|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines, Southern China, Vietnam|| {{ntsp|47000000||$}}|| {{nts|6}}|| {{cite web|title=SitRep No. 3 for Tropical Depression LANNIE (2021)|url=https://monitoring-dashboard.ndrrmc.gov.ph/exports/reporting/situational-report-for-tropical-depression-lannie-2021/national/558|archive-url=https://web.archive.org/web/20211127023001/https://monitoring-dashboard.ndrrmc.gov.ph/exports/reporting/situational-report-for-tropical-depression-lannie-2021/national/558|url-status=dead|archive-date=November 27, 2021|date=October 7, 2021|publisher=National Disaster Risk Reduction and Management Council}}

|-

| Kompasu (Maring) || {{Sort|211007|October 7 – 14}} || bgcolor=#{{storm color|STS}}|{{Sort|2|Severe tropical storm}} || bgcolor=#{{storm color|STS}}|{{convert|55|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|STS}}|{{convert|975|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines, Taiwan, South China, Vietnam || {{ntsp|545000000||$}}|| {{nts|44}} ||

|-

| Nando || {{Sort|211007|October 7 – 8}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1002|hPa|inHg|abbr=on|sigfig=4|comma=off}} || None || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Namtheun || {{Sort|211008|October 8 – 16}} || bgcolor=#{{storm color|STS}}|{{Sort|2|Severe tropical storm}} || bgcolor=#{{storm color|STS}}|{{convert|50|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|STS}}|{{convert|996|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Pacific Northwest, Alaska || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Malou || {{Sort|211023|October 23 – 29}} || bgcolor=#{{storm color|TY}}|{{Sort|3|Typhoon}} || bgcolor=#{{storm color|TY}}|{{convert|75|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|TY}}|{{convert|965|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Bonin Islands || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| 26W || {{Sort|211024|October 24 – 27}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1004|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Philippines, Vietnam || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Nyatoh || {{Sort|211128|November 28 – December 3}} || bgcolor=#{{storm color|VSTY}}|{{Sort|3|Very strong typhoon}} || bgcolor=#{{storm color|VSTY}}|{{convert|100|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|VSTY}}|{{convert|925|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Bonin Islands || {{ntsh|0||$}}None || {{sort|0|None}} ||

|-

| Rai (Odette) || {{Sort|211211|December 11 – 21}} || bgcolor=#{{storm color|VITY}}|{{Sort|3|Violent typhoon}} || bgcolor=#{{storm color|VITY}}|{{convert|105|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|| bgcolor=#{{storm color|VITY}}|{{convert|915|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Caroline Islands, Palau, Indonesia, Philippines, Vietnam, Southern China || {{ntsp|968000000||$}} || {{nts|410}} ||

|-

| 29W || {{Sort|211213|December 13 – 17}} || bgcolor=#{{storm color|TD}}|{{Sort|0|Tropical depression}} || bgcolor=#{{storm color|TD}}|{{Sort|045|Not specified}}|| bgcolor=#{{storm color|TD}}|{{convert|1006|hPa|inHg|abbr=on|sigfig=4|comma=off}} || Malaysia || {{ntsp|70000000||$}} || {{nts|54}} || {{Cite web|date=December 20, 2021|title=At least eight dead in Malaysia floods as rescue effort stumbles|url=https://www.reuters.com/markets/commodities/least-eight-dead-malaysia-floods-rescue-effort-stumbles-2021-12-20/|access-date=December 21, 2021|website=Reuters|language=English}}

|-

{{TC Areas affected (Bottom)|TC's=41 systems|dates=January 19 – December 21, 2021|winds={{convert|120|kn|km/h mph|round=5|order=out|abbr=on|sortable=on}}|pres={{convert|895|hPa|inHg|abbr=on|sigfig=4|comma=off}}|damage={{ntsp|4138016000||$}} |deaths={{nts|579}}|Refs=}}

{{Portal|Tropical cyclones}}

• Weather of 2021
• Tropical cyclones in 2021
• Pacific typhoon season
• 2021 Atlantic hurricane season
• 2021 Pacific hurricane season
• 2021 North Indian Ocean cyclone season
• South-West Indian Ocean cyclone seasons: 2020–21, 2021–22
• Australian region cyclone seasons: 2020–21, 2021–22
• South Pacific cyclone seasons: 2020–21, 2021–22

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Category:Pacific typhoon seasons

Category:Tropical cyclones in 2021