:Cyclone Cheneso
{{Short description|South-West Indian Ocean cyclone in 2023}}
{{Use dmy dates|date=January 2023}}
{{Infobox weather event
| name = Tropical Cyclone Cheneso
| image = Cheneso 2023-01-25 1100Z.jpg
| caption = Cyclone Cheneso strengthening off the coast of Madagascar on 25 January
| formed = 16 January 2023
| dissipated = 1 February 2023
| post-tropical = 29 January 2023
}}{{Infobox weather event/MFR
| winds = 75
| pressure = 965
}}{{Infobox weather event/JTWC
| winds = 85
| pressure = 965
}}{{Infobox weather event/Effects
| year = 2023
| deaths = 33
| missing = 20
| damages = 20000000
| affected = Madagascar
}}{{Infobox weather event/Footer
| season = 2022–23 South-West Indian Ocean cyclone season
}}
Tropical Cyclone Cheneso was a strong tropical cyclone that affected Madagascar in January 2023. The fourth tropical storm and fifth tropical cyclone of the 2022–23 South-West Indian Ocean cyclone season, Cheneso developed out of a zone of disturbed weather status which was first monitored at RSMC La Réunion on 17 January. Despite convection wrapping into the curved band pattern, the system formed into a tropical depression on 18 January. The depression strengthened into Severe Tropical Storm Cheneso on the following day. Cheneso made landfall over northern Madagascar and weakened into an inland depression, before emerging into the Mozambique Channel. Cheneso later strengthened into a tropical cyclone on 25 January. The system continued moving southeast, before transitioning into a post–tropical depression on 29 January.
The National Office for Risk and Disaster Management (BNGRC) has reported 33 deaths and 20 missing. The agency reports a total 90,870 affected people, 34,100 of which were displaced. Around 23,600 homes and 164 schools suffered damage. Humanitarians and authorities also supported post–storm preparation and relief efforts, as millions were expected to be impacted. The same areas were affected by a far more powerful tropical cyclone, Cyclone Freddy two weeks later.
Meteorological history
{{Storm path|Cheneso 2023 path.png|colors=new|note=The position of Cheneso's Category 2 peak is not depicted in this graphic as it is an asynoptic point (i.e. not at the 6-hour intervals of all other points) occurring at 03:00 UTC 28 January.}}
The origin of Cheneso can be traced back to an area of persistent showers and thunderstorms south of Diego Garcia, first noted by the Météo–France (MFR) on 10 January 2023.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/zcit/ZCITA_202301101309.pdf |title=Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwest Indian Ocean |date=10 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230117093412/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/zcit/ZCITA_202301101309.pdf |archive-date=17 January 2023 |url-status=live |accessdate=10 January 2023}} Three days later, the Joint Typhoon Warning Center (JTWC) had also begun monitoring the area of disturbance.{{Cite JTWC|date=13 January 2023|type=abio|time=18Z|url=https://www.metoc.navy.mil/jtwc/products/abioweb.txt|url-status=live|archive-date=2018-02-13|archive-url=https://web.archive.org/web/20180213123248/http://www.metoc.navy.mil/jtwc/products/abioweb.txt}} [https://wiki.chlod.net/jtwc/text/2023-01-13-1820-abioweb.txt Alt URL] The system was located in a favorable environment for intensification, as well as warm sea surface temperatures, low to high vertical wind shear.{{Cite JTWC|date=14 January 2023|type=abio|time=18Z|url=https://www.metoc.navy.mil/jtwc/products/abioweb.txt|url-status=live|archive-date=2018-02-13|archive-url=https://web.archive.org/web/20180213123248/http://www.metoc.navy.mil/jtwc/products/abioweb.txt}} [https://wiki.chlod.net/jtwc/text/2023-01-14-1750-abioweb.txt Alt URL] Despite this, the MFR initiated advisories for the zone of disturbed weather, while the JTWC issued a Tropical Cyclone Formation Alert (TCFA) on 17 January.{{Cite JTWC|date=17 January 2023|type=tcfa|designation=96S|url=https://www.metoc.navy.mil/jtwc/products/sh9622web.txt|url-status=live|archive-date=2022-01-26|archive-url=https://web.archive.org/web/20220126083948/https://www.metoc.navy.mil/jtwc/products/sh9622web.txt}} [https://wiki.chlod.net/jtwc/text/2023-01-17-0810-sh9623web.txt Alt URL]{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301170745.pdf |title=Zone of Disturbed Weather 05 Warning Number (1/5/20222023) |date=17 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230117112820/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301170745.pdf |archive-date=17 January 2023 |accessdate=17 January 2023}} Six hours later, the MFR upgraded the system to tropical disturbance status. {{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301171934.pdf |title=Tropical Disturbance 05 Warning Number (3/5/20222023) |date=17 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230118002606/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301171934.pdf|archive-date=18 January 2023|accessdate=18 January 2023}} Similarly, the JTWC subsequently initiated advisories on the system and classified it as Tropical Cyclone 08S.{{Cite JTWC|date=17 January 2023|type=warn|category=tc|designation=08S|no=1|name=Eight|url=https://www.metoc.navy.mil/jtwc/products/sh0823web.txt|archive-url=https://web.archive.org/web/20230117210124/https://www.metoc.navy.mil/jtwc/products/sh0823web.txt|url-status=dead|archive-date=2023-01-17|}} [https://wiki.chlod.net/jtwc/text/2023-01-17-1950-sh0823web.txt Alt URL]
Deep convection was wrapping into the curved band pattern, prompting the MFR to upgrade it to a tropical depression status.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301181323.pdf |title=Tropical Depression 05 Warning Number (4/5/20222023) |date=18 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230118091049/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301180112.pdf |archive-date=18 January 2023 |accessdate=18 January 2023}} At 12:00 UTC on 18 January, the MFR also upgraded the system into a moderate tropical storm status, and the Meteo Madagascar named it Cheneso.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301181323.pdf |title=Moderate Tropical Storm 05 (Cheneso) Warning Number (6/5/20222023) |date=18 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230119060156/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301181323.pdf |archive-date=19 January 2023 |accessdate=18 January 2023}} Soon afterward, Cheneso intensified further into a severe tropical storm status.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301181924.pdf |title=Severe Tropical Storm 05 (Cheneso) Warning Number (7/5/20222023) |date=18 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230119060531/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301181924.pdf |archive-date=19 January 2023 |accessdate=18 January 2023}} Satellite imagery showed that a central dense overcast (CDO) was obscuring the low–level circulation center (LLCC).{{cite JTWC|date=18 January 2023 |type=prog|category=TC|designation=08S|no=03|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0522prog.txt|archive-url=https://web.archive.org/web/20230119072924/https://www.metoc.navy.mil/jtwc/products/sh0823prog.txt|archive-date=19 January 2023}} Cheneso continued moving westwards, and by the next day, it had made landfall over northern Madagascar; the JTWC released its final warning on the storm.{{Cite JTWC|date=17 January 2023|type=warn||category=tc|no=4|designation=08S|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0823web.txt|url-status=dead|archive-date=19 January 2023|archive-url=https://web.archive.org/web/20230119105118/https://www.metoc.navy.mil/jtwc/products/sh0823web.txt}} By 18:00 UTC, the MFR declared that Cheneso had degenerated into an overland depression.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301181924.pdf |title=Overland Depression 05 (Cheneso) Warning Number (10/5/20222023) |date=19 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230120091233/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301191323.pdf |archive-date=20 January 2023 |accessdate=19 January 2023}} Due to uncertainty in predicting the storm's track, the MFR temporarily ceased issuing advisories on 20 January.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301201302.pdf |title=Overland Depression 05 (Cheneso) Warning Number (14/5/20222023) |date=20 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230121041346/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301201302.pdf |archive-date=21 January 2023 |accessdate=20 January 2023}} During 21 January, Cheneso began to emerge into the Mozambique Channel, the JTWC resumed monitoring and stated the system had the potential to re–develop.{{Cite JTWC|date=21 January 2023|time=20Z|type=abio|url=https://www.metoc.navy.mil/jtwc/products/abioweb.txt|url-status=live|archive-date=2018-02-13|archive-url=https://web.archive.org/web/20180213123248/http://www.metoc.navy.mil/jtwc/products/abioweb.txt}} [https://wiki.chlod.net/jtwc/text/2023-01-21-2000-abioweb.txt Alt URL]{{Cite JTWC|date=21 January 2023|time=18Z|type=abio|url=https://www.metoc.navy.mil/jtwc/products/abioweb.txt|url-status=live|archive-date=22 January 2023|archive-url=https://web.archive.org/web/20230122212854/https://www.metoc.navy.mil/jtwc/products/abioweb.txt}} The LLCC started to get consolidated with deep convective bands wrapping into it.{{Cite JTWC|date=23 January 2023|time=13Z|type=abio|url=https://www.metoc.navy.mil/jtwc/products/abioweb.txt|url-status=live|archive-date=23 January 2023|archive-url=https://web.archive.org/web/20230123052055/https://www.metoc.navy.mil/jtwc/products/abioweb.txt}} As a result, the MFR initiated advisories again on 23 January.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301230724.pdf|title=Overland Depression 05 (Cheneso) Warning Number (15/5/20222023) |date=23 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230123092522/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301230724.pdf|archive-date=23 January 2023 |accessdate=23 January 2023}} File:Cheneso 2023-01-18 1545Z - 2023-01-19 1545Z.gifCheneso gained tropical disturbance status yet again, however the system lacked deep convection near its center.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301231308.pdf |title=Tropical Disturbance 05 (Cheneso) Warning Number (16/5/20222023) |date=23 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230123133040/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301231308.pdf |archive-date=23 January 2023 |accessdate=23 January 2023}} By 14:00 UTC that day, the JTWC re–issued a TCFA, and re–upgraded the system to a tropical storm.{{Cite JTWC|date=23 January 2023|type=tcfa|designation=08S|url=https://www.metoc.navy.mil/jtwc/products/sh9622web.txt|url-status=live|archive-date=23 January 2023|archive-url=https://web.archive.org/web/20230123135614/https://www.metoc.navy.mil/jtwc/products/sh0823web.txt}}{{Cite JTWC|date=24 January 2023|type=warn||category=tc|no=5|designation=08S|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0823web.txt|url-status=dead|archive-date=24 January 2023|archive-url=https://web.archive.org/web/20230124040147/https://www.metoc.navy.mil/jtwc/products/sh0823web.txt}} Cheneso resumed its organizing trend soon afterward, and at 00:00 UTC on 24 January, the MFR upgraded the system to a tropical depression status.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301240109.pdf |title=Tropical Depression 05 (Cheneso) Warning Number (18/5/20222023) |date=24 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230124071914/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301240109.pdf |archive-date=24 January 2023 |accessdate=24 January 2023}} Six hours later, convection increased near the center, and the storm was upgraded to moderate tropical storm status.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301241022.pdf|title=Moderate Tropical Storm Cheneso 05 (Cheneso) Warning Number (19/5/20222023) |date=24 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230124110106/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301241022.pdf|archive-date=24 January 2023 |accessdate=24 January 2023}} The storm continued to organize with an intense CDO forming along with an eye, and Cheneso strengthened to severe tropical storm status.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301241326.pdf |title=Moderate Tropical Storm Cheneso 05 (Cheneso) Warning Number (20/5/20222023) |date=24 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230124140303/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301241326.pdf |archive-date=24 January 2023 |accessdate=24 January 2023}}{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301241920.pdf |title=Severe Tropical Storm Cheneso 05 (Cheneso) Warning Number (21/5/20222023) |date=24 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230124222924/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301241920.pdf |archive-date=24 January 2023 |accessdate=24 January 2023}} By 03:00 UTC on 25 January, Cheneso strengthened into a Category 1–equivalent tropical cyclone on the Saffir–Simpson hurricane wind scale (SSHWS), as it neared the coast of Madagascar.{{cite JTWC|date=25 January 2023|type=prog|category=TC|designation=08S|no=07|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0522prog.txt|archive-url=https://web.archive.org/web/20230125042929/https://www.metoc.navy.mil/jtwc/products/sh0823prog.txt|archive-date=25 January 2023}} The cyclone strengthened further with a defined curved pattern, marking its intensification into a tropical cyclone status.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301251341.pdf |title=Tropical Cyclone Cheneso 05 (Cheneso) Warning Number (24/5/20222023) |date=25 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230125140229/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301251341.pdf |archive-date=25 January 2023 |accessdate=24 January 2023}} By 18:00 UTC, the eye pattern consolidated as the cyclone moved northeast after being stationary for the past 6 hours.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301251847.pdf |title=Tropical Cyclone Cheneso 05 (Cheneso) Warning Number (25/5/20222023) |date=25 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230125230201/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301251847.pdf |archive-date=25 January 2023 |accessdate=25 January 2023}} Satellite imagery depicted that a tightly–wrapped convective banding was circulating around a cloud–filled eye.{{cite JTWC|date=25 January 2023|type=prog|category=TC|designation=08S|no=08|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-url=https://web.archive.org/web/20230126022539/https://www.metoc.navy.mil/jtwc/products/sh0823prog.txt|archive-date=26 January 2023}} Cheneso started to rapidly weaken after its eye quickly collapsed and the cloud tops had warmed.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301260735.pdf |title=Tropical Cyclone Cheneso 05 (Cheneso) Warning Number (27/5/20222023) |date=26 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230129132246/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301260735.pdf |archive-date=29 January 2023 |accessdate=26 January 2023}} By 12:00 UTC on 26 January, Cheneso was downgraded to severe tropical storm status by the MFR, as it headed in a southeast direction.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301261317.pdf |title=Severe Tropical Storm Cheneso 05 (Cheneso) Warning Number (28/5/20222023) |date=26 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230127160705/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301261317.pdf |archive-date=27 January 2023 |accessdate=26 January 2023}}
By the next day, Cheneso was downgraded to tropical storm status by the JTWC as its LLCC and its surrounding convection became a fragmented cold band.{{cite JTWC|date=27 January 2023|type=prog|category=TC|designation=08S|no=11|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-url=https://web.archive.org/web/20230127000000/https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-date=27 January 2023}} [https://wiki.chlod.net/jtwc/prog/2023-01-27-0300-sh0823prog.txt Alt URL] But, Cheneso's cloud pattern continued to improve with its CDO, and Cheneso re–intensified, reaching 10–minute maximum sustained winds of {{convert|65|kn|km/h mph|abbr=on|order=out|round=5|sortable=on}}, 1–minute sustained winds of {{convert|70|kn|km/h mph|abbr=on|order=out|round=5|sortable=on}} around 00:00 UTC on 28 January.{{cite JTWC|date=28 January 2023|type=warn|category=TC|designation=08S|no=13|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-url=https://web.archive.org/web/20230128024511/https://www.metoc.navy.mil/jtwc/products/sh0823web.txt|archive-date=28 January 2023}}{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301280109.pdf |title=Tropical Cyclone Cheneso 05 (Cheneso) Warning Number (34/5/20222023) |date=28 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230128025125/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301280109.pdf |archive-date=28 January 2023 |accessdate=28 January 2023}} A Radarsat–2 SAR image recorded winds of {{convert|80|-|85|km/h|abbr=on|mph|}} around the swath.{{cite JTWC|date=28 January 2023|type=prog|category=TC|designation=08S|no=14|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-url=https://web.archive.org/web/20230128000000/https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-date=28 January 2023}} [https://wiki.chlod.net/jtwc/prog/2023-01-28-1450-sh0823prog.txt Alt URL] At 03:00 UTC on 28 January, the JTWC estimated that Cheneso had strengthened into a Category 2–equivalent tropical cyclone, with 1–minute sustained winds at {{convert|85|kn|km/h mph|abbr=on|order=out|round=5|sortable=on}}. Cheneso weakened into a severe tropical storm status, after the convection began to rapidly deteriorate.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301281858.pdf |title=Severe Tropical Storm 05 (Cheneso) Warning Number (37/5/20222023) |date=28 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230130095658/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301281858.pdf |archive-date=30 January 2023 |accessdate=28 January 2023}} The JTWC also reported that Cheneso had weakened further into a tropical storm status.{{cite JTWC|date=29 January 2023|type=prog|category=TC|designation=08S|no=15|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-url=https://web.archive.org/web/20230129000000/https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-date=29 January 2023}} [https://wiki.chlod.net/jtwc/prog/2023-01-29-0330-sh0823prog.txt Alt URL] By 06:00 UTC on 29 January, Cheneso's structure became poorly organized, prompting MFR to reclassify the storm as a post–tropical depression.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301290718.pdf |title=Post-Tropical Depression 05 (Ex-Cheneso) Warning Number (39/5/20222023) |date=29 January 2023 |publisher=Météo-France |archive-url=https://web.archive.org/web/20230129075657/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301290718.pdf |archive-date=29 January 2023 |accessdate=29 January 2023}} The JTWC also discontinued warnings on the system around 03:00 UTC on 30 January.{{cite JTWC|date=30 January 2023|type=warn|category=TC|designation=08S|no=17|name=Cheneso|url=https://www.metoc.navy.mil/jtwc/products/sh0822prog.txt|archive-url=https://web.archive.org/web/20230130054750/https://www.metoc.navy.mil/jtwc/products/sh0823web.txt|archive-date=30 January 2023}} The system was last noted on 1 February.{{cite report |url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/zcit/ZCITA_202302011211.pdf |title=Bulletin for Cyclonic Activity and Significant Tropical Weather in the Southwest Indian Ocean |date=1 February 2023 |publisher=Météo-France |accessdate=1 February 2023 |archive-date=1 February 2023 |archive-url=https://web.archive.org/web/20230201141224/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/zcit/ZCITA_202302011211.pdf |url-status=live }}
Preparations and impact
File:Cheneso Floods Madagascar.jpg
Upon making landfall in Madagascar, humanitarians and authorities coordinated preparedness activities.{{Cite web |title=Madagascar: Cyclone Season Flash Update No. 1, 18 January 2023 – Madagascar {{!}} ReliefWeb |url=https://reliefweb.int/report/madagascar/madagascar-cyclone-season-flash-update-no-1-18-january-2023 |access-date=26 January 2023 |website=reliefweb.int |language=en |archive-date=24 January 2023 |archive-url=https://web.archive.org/web/20230124001941/https://reliefweb.int/report/madagascar/madagascar-cyclone-season-flash-update-no-1-18-january-2023 |url-status=live }} The storm was expected to affect up to 3 million people.{{Cite web |title=Madagascar: Cyclone Season Flash Update No. 2, 19 January 2023 – Madagascar {{!}} ReliefWeb |url=https://reliefweb.int/report/madagascar/madagascar-cyclone-season-flash-update-no-2-19-january-2023 |access-date=26 January 2023 |website=reliefweb.int |language=en |archive-date=20 January 2023 |archive-url=https://web.archive.org/web/20230120174905/http://reliefweb.int/report/madagascar/madagascar-cyclone-season-flash-update-no-2-19-january-2023 |url-status=live }} The United Nations Humanitarian Air Service (UNHAS) were also placed on standby. Accordingly, cyclone response measures were activated by the BNGRC and humanitarian organisations.{{Cite web |title=Madagascar: Cyclone Season Flash Update No. 3, 20 January 2023 – Madagascar {{!}} ReliefWeb |url=https://reliefweb.int/report/madagascar/madagascar-cyclone-season-flash-update-no-3-20-january-2023 |access-date=27 January 2023 |website=reliefweb.int |language=en |archive-date=20 January 2023 |archive-url=https://web.archive.org/web/20230120181113/https://reliefweb.int/report/madagascar/madagascar-cyclone-season-flash-update-no-3-20-january-2023 |url-status=live }} The Copernicus Emergency Management Service – Mapping were activated in order to "support damage assessment".{{Cite web |title=Madagascar – Tropical Cyclone CHENESO, update (GDACS, Meteo France La Reunion, Meteo Madagascar, EMSR645, BNGRC) (ECHO Daily Flash of 26 January 2023) – Madagascar {{!}} ReliefWeb |url=https://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-cheneso-update-gdacs-meteo-france-la-reunion-meteo-madagascar-emsr645-bngrc-echo-daily-flash-26-january-2023 |access-date=27 January 2023 |website=reliefweb.int |language=en |archive-date=28 January 2023 |archive-url=https://web.archive.org/web/20230128052545/https://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-cheneso-update-gdacs-meteo-france-la-reunion-meteo-madagascar-emsr645-bngrc-echo-daily-flash-26-january-2023 |url-status=live }} Local authorities issued an alert of heavy rain in the country's central and western regions, posing an imminent risk of flooding and landslides.{{Cite web |last=Kabukuru |first=Wanjohi |date=23 January 2023 |title=Storm Cheneso picks up in Madagascar, more flooding to come |url=https://abcnews.go.com/International/wireStory/storm-cheneso-picks-madagascar-flooding-96712995 |archive-url=https://web.archive.org/web/20230131095847/https://abcnews.go.com/International/wireStory/storm-cheneso-picks-madagascar-flooding-96712995 |archive-date=31 January 2023 |access-date=27 January 2023 |website=ABC News |language=en}}
In Sambava, Madagascar, Cheneso caused {{convert|100|mm|abbr=on}} of rain.{{Cite web |title=Madagascar – 700 Homes Flooded as Tropical Storm Cheneso Makes Landfall – FloodList |url=https://floodlist.com/africa/madagascar-tropical-storm-cheneso-january-2023 |archive-url=https://web.archive.org/web/20230121095747/https://floodlist.com/africa/madagascar-tropical-storm-cheneso-january-2023 |archive-date=21 January 2023 |access-date=21 January 2023 |website=floodlist.com}} The Météo Madagascar issued a red flood watch for several river basins.{{Cite web |title=Madagascar – Tropical storm CHENESO, update (DG ECHO, GDACS, Meteo France La Reunion, BNGRC, MeteoMadagascar) (ECHO Daily Flash of 24 January 2023) – Madagascar {{!}} ReliefWeb |url=https://reliefweb.int/report/madagascar/madagascar-tropical-storm-cheneso-update-dg-echo-gdacs-meteo-france-la-reunion-bngrc-meteomadagascar-echo-daily-flash-24-january-2023 |archive-url=https://web.archive.org/web/20230125112616/https://reliefweb.int/report/madagascar/madagascar-tropical-storm-cheneso-update-dg-echo-gdacs-meteo-france-la-reunion-bngrc-meteomadagascar-echo-daily-flash-24-january-2023 |archive-date=25 January 2023 |access-date=25 January 2023 |website=reliefweb.int |language=en}} The government of Madagascar ordered the temporary closure of schools.{{Cite web |title=Al menos ocho muertos y dieciséis desaparecidos por un ciclón en Madagascar |trans-title=At least eight dead and sixteen missing from a cyclone in Madagascar |url=https://www.swissinfo.ch/spa/madagascar-cicl%C3%B3n_al-menos-ocho-muertos-y-diecis%C3%A9is-desaparecidos-por-un-cicl%C3%B3n-en-madagascar/48232050 |archive-url=https://archive.today/20230131103910/https://www.swissinfo.ch/spa/madagascar-cicl%C3%B3n_al-menos-ocho-muertos-y-diecis%C3%A9is-desaparecidos-por-un-cicl%C3%B3n-en-madagascar/48232050 |archive-date=31 January 2023 |access-date=25 January 2023 |website=SWI swissinfo.ch |language=es}} Strong winds spread from north to south along the northwestern coast of Madagascar.{{cite report|url=http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301191323.pdf|title=Overland Depression 05 Warning Number (10/5/20222023)|date=18 January 2023|publisher=Météo-France|accessdate=18 January 2023|archive-date=20 January 2023|archive-url=https://web.archive.org/web/20230120091233/http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/bulletins/cmrs/CMRSA_202301191323.pdf|url-status=live}} Several bridges were destroyed.{{Cite web |title=Madagascar : La tempête Cheneso a fait des victimes |url=https://la1ere.francetvinfo.fr/mayotte/madagascar-la-tempete-cheneso-a-fait-des-victimes-1360750.html |archive-url=https://ghostarchive.org/archive/20230131100156/https://la1ere.francetvinfo.fr/mayotte/madagascar-la-tempete-cheneso-a-fait-des-victimes-1360750.html |archive-date=31 January 2023 |access-date=27 January 2023 |website=Mayotte la 1ère |language=fr-FR |url-status=live }} Cheneso made landfall between the towns of Sambava and Antalaha as a severe tropical storm status on 19 January.{{Cite web |date=29 January 2023 |title=Tens of thousands homeless after Madagascar tropical storm |url=https://editor.guardian.ng/news/tens-of-thousands-homeless-after-madagascar-tropical-storm/ |access-date=29 January 2023 |website=The Guardian Nigeria News - Nigeria and World News |publisher=Associated Press |language=en-US |archive-date=29 January 2023 |archive-url=https://web.archive.org/web/20230129132715/https://editor.guardian.ng/news/tens-of-thousands-homeless-after-madagascar-tropical-storm/ |url-status=live }}
The BNGRC reported 90,870 affected people, 34,100 of which were displaced. At least 33 people were killed in the onslaught of Cheneso, with 20 others missing.{{Cite web |title=Madagascar - Tropical Cyclone CHENESO, update (GDACS, BNGRCMID, MeteoMadagascar, EMSR645) (ECHO Daily Flash of 01 February 2023) - Madagascar {{!}} ReliefWeb |url=https://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-cheneso-update-gdacs-bngrcmid-meteomadagascar-emsr645-echo-daily-flash-01-february-2023 |access-date=2023-02-01 |website=reliefweb.int |language=en |archive-date=1 February 2023 |archive-url=https://web.archive.org/web/20230201134256/https://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-cheneso-update-gdacs-bngrcmid-meteomadagascar-emsr645-echo-daily-flash-01-february-2023 |url-status=live }} In addition to this, over 23,600 houses, 18 medical centers and 164 schools were damaged.{{Cite web |title=Madagascar – Tropical Cyclone CHENESO, update (GDACS, Meteo France La Reunion, Meteo Madagascar, Copernicus EMSR645, BNGRC) (ECHO Daily Flash of 27 January 2023) – Madagascar {{!}} ReliefWeb |url=https://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-cheneso-update-gdacs-meteo-france-la-reunion-meteo-madagascar-copernicus-emsr645-bngrc-echo-daily-flash-27-january-2023 |access-date=27 January 2023 |website=reliefweb.int |language=en |archive-date=28 January 2023 |archive-url=https://web.archive.org/web/20230128045141/https://reliefweb.int/report/madagascar/madagascar-tropical-cyclone-cheneso-update-gdacs-meteo-france-la-reunion-meteo-madagascar-copernicus-emsr645-bngrc-echo-daily-flash-27-january-2023 |url-status=live }}{{Cite web |title=Suben a dieciséis los muertos en Madagascar por el ciclón Cheneso |url=https://www.swissinfo.ch/spa/madagascar-cicl%C3%B3n_suben-a-diecis%C3%A9is-los-muertos-en-madagascar-por-el-cicl%C3%B3n-cheneso/48237762 |archive-url=https://web.archive.org/web/20230131095000/https://www.swissinfo.ch/spa/madagascar-cicl%C3%B3n_al-menos-ocho-muertos-y-diecis%C3%A9is-desaparecidos-por-un-cicl%C3%B3n-en-madagascar/48232050 |archive-date=31 January 2023 |access-date=27 January 2023 |website=SWI swissinfo.ch |language=es}} About 1,400 estimate of rice fields were flooded.{{Cite web |date=27 January 2023 |title=Cyclone Cheneso: le bilan humain s'alourdit, le réseau routier fortement perturbé |url=https://www.madagascar-tribune.com/Cyclone-Cheneso-le-bilan-humain-s-alourdit-le-reseau-routier-fortement-perturbe.html |archive-url=https://web.archive.org/web/20230131094441/https://www.madagascar-tribune.com/Cyclone-Cheneso-le-bilan-humain-s-alourdit-le-reseau-routier-fortement-perturbe.html |archive-date=31 January 2023 |access-date=27 January 2023 |website=Madagascar-Tribune.com |language=fr}} Oman responded by sending 7 tons of medicine and 35 tons of food aid to victims of the cyclone.{{Cite web |date=24 January 2023 |title=Madagascar : un avion amène la solidarité d'Oman |url=https://www.temoignages.re/international/madagascar-grande-ile/madagascar-un-avion-amene-la-solidarite-d-oman,106279 |url-status=live |archive-url=https://web.archive.org/web/20230130105736/https://www.temoignages.re/international/madagascar-grande-ile/madagascar-un-avion-amene-la-solidarite-d-oman,106279 |archive-date=30 January 2023 |access-date=28 January 2023 |website=Témoignages.RE |language=fr}} According to local authorities, food supplies are being provided to those in need.{{Cite web |date=30 January 2023 |title=Flooding, landslides from tropical storm Cheneso causes nearly 30 deaths, leaves 20 missing in Madagascar |url=https://www.foxnews.com/world/flooding-landslides-tropical-storm-cheneso-30-deaths-leaves-20-missing-madagascar |archive-url=https://web.archive.org/web/20230131084423/https://www.foxnews.com/world/flooding-landslides-tropical-storm-cheneso-30-deaths-leaves-20-missing-madagascar |archive-date=31 January 2023 |access-date=31 January 2023 |website=Associated Press |language=en-US}}
See also
{{Portal|Tropical cyclones|Madagascar}}
- Cyclone Gafilo (2004)
- Cyclone Ernest (2005)
- Cyclone Ivan (2008)
- Cyclone Bingiza (2011)
- Cyclone Giovanna (2012)
- Cyclone Hellen (2013) – a powerful tropical cyclone that impacted northern Madagascar.
- Cyclone Ava (2017) – a strong tropical cyclone that brought impacts to parts of eastern Madagascar.
- Cyclone Eloise (2021) – another cyclone that struck northern Madagascar as a tropical storm and intensified to a Category 2 on the Saffir–Simpson scale in the Mozambique channel.
- Cyclone Batsirai (2022) – a powerful tropical cyclone that also impacted eastern Madagascar.
- Cyclone Freddy (2023) – also affected Madagascar a few weeks later.
- Tropical cyclones in 2023
- Weather of 2023
- Climate change in Madagascar
Notes
{{reflist|group=nb}}
References
{{reflist}}
External links
{{Commons}}
- [http://www.meteo.fr/temps/domtom/La_Reunion/webcmrs9.0/anglais/activiteope/data/20222023/2022RE05.html MFR Track Data] of Tropical Cyclone Cheneso {{in lang|fr}}
- [https://science.nrlmry.navy.mil/geoips/tcdat/tc2023/SH/SH082023/txt/trackfile.txt JTWC Best Track Data] of Tropical Cyclone 08S (Cheneso)
- [https://web.archive.org/web/20230127201701/https://www.nrlmry.navy.mil/tcdat/tc2023/SH/SH082023/ 08S.CHENESO] from the United States Naval Research Laboratory
- {{ReliefWeb-link|tc-2023-000012-mdg}}
{{2022-23 South-West Indian Ocean cyclone season buttons}}
{{DEFAULTSORT:Cheneso}}
Category:2022–23 South-West Indian Ocean cyclone season
Category:Tropical cyclones in 2023