Hurricane Inga

{{storm path|Inga 1969 track.png}}

On September 20, a tropical disturbance in the Atlantic Ocean developed into a tropical depression.{{cite web|author=Atlantic hurricane research division|year=2009|url=http://www.nhc.noaa.gov/tracks1851to2009_atl_reanal.txt|title=Atlantic hurricane database (HURDAT) "best track" (1851–2008)|publisher=National Oceanic and Atmospheric Administrations|access-date=January 27, 2010}} On the next morning, the National Hurricane Center reported that the system became a tropical storm while centered about {{convert|930|mi|km|abbr=on}} east-southeast of San Juan, Puerto Rico. At the time, the storm was moving towards the west at {{convert|14|mph|km/h|abbr=on}}.{{cite web|author=Forecaster Sugg|date=September 21, 1969|title=Tropical Storm Inga Public Advisory Number 1|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub211730z.jpg}} At the time, Inga was a very small tropical cyclone; gale-force winds extended less than {{convert|100|mi|km|abbr=on}} from the center.{{cite web|author=Forecaster Simpson|date=September 21, 1969|title=Tropical Storm Inga Public Advisory Number 2|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub212200z.jpg}} However, by September 23, the storm had become disorganized and sprawling.{{cite web|author=Forecaster Simpson|date=September 23, 1969|title=Tropical Storm Inga Public Advisory Number 9|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub231600z.jpg}} Later that day, Inga weakened back into a tropical depression.

The depression continued west-northwestward, passing north of the Leeward Islands, before drifting northwestward. It once again attained tropical storm status on September 28, while situated well to the east of the Bahamas.{{cite web|author=Forecaster Simpson|date=September 29, 1969|title=Tropical Storm Inga Public Advisory Number 19|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub291600z.jpg}} Inga continued to intensify, and achieved hurricane status at 0000 UTC on September 30, at which point it turned northeastward. The storm then abruptly, yet gradually, turned towards the south, and ultimately completed a counter-clockwise loop as it bent back westward. Steering currents were weak, and the hurricane continued to proceed slowly.{{cite web|author=Forecaster Frank|date=October 2, 1969|title=Hurricane Inga Public Advisory Number 32|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub022200z.jpg}} Late on October 3, it turned to the northwest, still as a Category 1 hurricane on the modern-day Saffir–Simpson hurricane scale.{{cite web|author=Forecaster Frank|date=October 3, 1969|title=Hurricane Inga Public Advisory Number 36|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub032200z.jpg}} The storm then curved northeastward and intensified to Category 2 status at 0000 UTC on October 5.

Inga accelerated somewhat as it passed to the southeast of Bermuda. By the morning hours of October 5, it was determined that the hurricane posed no significant threat to the island.{{cite web|author=Forecaster Frank|date=October 5, 1969|title=Hurricane Inga Bulletin|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub051300z.jpg}} At 1200 UTC, the storm's lowest known barometric pressure of 964 millibars was recorded. Shortly thereafter, it briefly strengthened to Category 3 status; the cyclone peaked with maximum sustained winds of {{convert|115|mph|km/h|abbr=on|round=5}}. As it moved towards the open waters of the Atlantic and entered a cooler environment,{{cite web|author=Forecaster Herbert|date=October 6, 1969|title=Hurricane Inga Public Advisory Number 46|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub061000z.jpg}} it deteriorated to Category 1 intensity on October 6. The hurricane slowed again, and as cold air became entrained into its circulation, it began to lose tropical characteristics.{{cite web|author=Forecaster Hope|date=October 6, 1969|title=Hurricane Inga Public Advisory Number 49|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub070400z.jpg}}

File:Inga_1969-10-03_weather_map.jpg

However, Inga once again intensified and reattained Category 2 intensity on October 7. At this point, the hurricane was drifting generally eastward. However, in time the storm turned towards the south and began to weaken. Operationally, the storm was believed to have downgraded to a tropical storm on October 8 and regained hurricane status thereafter,{{cite web|author=Forecaster Sugg|date=October 8, 1969|title=Hurricane Inga Public Advisory Number 55|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub081600z.jpg}}{{cite web|author=Forecaster Hope|date=October 9, 1969|title=Hurricane Inga Public Advisory Number 57|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub090400z.jpg}} but instead it likely maintained Category 1 intensity steadily until October 10. After the storm finally degenerated into a tropical storm, it curved southwestward. The storm's center became ill-defined and elongated at the storm continued to lose strength.{{cite web|author=Forecaster Clark|date=October 10, 1969|title=Hurricane Inga Public Advisory Number 64|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub102200z.jpg}} Heading westward, Inga was downgraded to a tropical depression{{cite web|author=Forecaster Hope|date=October 12, 1969|title=Hurricane Inga Public Advisory Number 72|publisher=National Hurricane Center|access-date=January 27, 2010|url=http://www.nhc.noaa.gov/archive/storm_wallets/cdmp/dvd0006-jpg/1969/atlantic/inga/public/pub122200z.jpg}} before dissipating fully on October 15, about {{convert|290|mi|km|abbr=on}} from where it initially attained hurricane status.{{cite web|author=R.H. Simpson |title=The Atlantic Hurricane Season of 1969 |publisher=Weather Bureau |date=April 1970 |access-date=January 27, 2010 |url=http://www.aoml.noaa.gov/general/lib/lib1/nhclib/mwreviews/1969.pdf |display-authors=etal |url-status=dead |archive-url=https://web.archive.org/web/20110104030026/http://www.aoml.noaa.gov/general/lib/lib1/nhclib/mwreviews/1969.pdf |archive-date=January 4, 2011 }}

Hurricane Inga lasted for nearly 25 days between September 20 and October 15. This made it the third longest-tracked Atlantic hurricane on record, behind the 1899 San Ciriaco hurricane and Hurricane Ginger in September–October 1971. The fourth, fifth, and sixth longest-lived storms are Hurricane Nadine in 2012, Hurricane Kyle in 2002, and Hurricane Four in 1926. At the time of its existence, however, Inga was believed to have been the longest-lived Atlantic tropical cyclone on record. The National Hurricane Center issued 72 total advisories on the storm.{{cite news|author=Staff Writer|title=Oldest-Ever Hurricane Goes Strong|date=September 23, 1971|newspaper=The Modesto Bee|access-date=January 27, 2010|url=https://news.google.com/newspapers?id=TVchAAAAIBAJ&sjid=PIUFAAAAIBAJ&pg=5403,3014567&dq=hurricane-inga&hl=en|archive-url=https://archive.today/20120714123232/http://news.google.com/newspapers?id=TVchAAAAIBAJ&sjid=PIUFAAAAIBAJ&pg=5403,3014567&dq=hurricane-inga&hl=en|url-status=dead|archive-date=July 14, 2012}}

While Inga remained predominately over the open ocean, its outer fringes produced {{convert|80|mph|km/h|abbr=on}} wind gusts on Bermuda. The strong winds caused power failures, which were promptly restored.{{cite news|author=Staff Writer|title=Hurricane Inga Hammers Bermuda|date=October 6, 1969|newspaper=The Milwaukee Sentinel|access-date=January 27, 2010|url=https://news.google.com/newspapers?id=FvsjAAAAIBAJ&sjid=sREEAAAAIBAJ&pg=876,934324&dq=hurricane-inga&hl=en|archive-date=May 15, 2016|archive-url=https://web.archive.org/web/20160515030704/https://news.google.com/newspapers?id=FvsjAAAAIBAJ&sjid=sREEAAAAIBAJ&pg=876,934324&dq=hurricane-inga&hl=en|url-status=dead}} Residents were advised to monitor the storm in case of sudden changes in direction.{{cite news|title='Cane Inga Picks up Power|date=October 4, 1969|newspaper=Daytona Beach Morning Journal|access-date=January 27, 2010|url=https://news.google.com/newspapers?id=bpMeAAAAIBAJ&sjid=ncsEAAAAIBAJ&pg=2062,878635&dq=hurricane-inga&hl=en}}

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