On This Date: Super Typhoon Forrest Sets World Record For Rapid Intensification Jonathan ErdmanSeptember 23, 2025 at 6:00 AM 0 We've used the term rapid intensification seemingly quite often in recent years to describe hurricanes that undergo a fast increase in their winds. But on Sept.
- - On This Date: Super Typhoon Forrest Sets World Record For Rapid Intensification
Jonathan ErdmanSeptember 23, 2025 at 6:00 AM
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We've used the term rapid intensification seemingly quite often in recent years to describe hurricanes that undergo a fast increase in their winds.
But on Sept. 23, 1983, 42 years ago today, a typhoon — what hurricanes are called in the Northwestern Pacific Ocean — set a world record for how explosively it amped up.
In just under 24 hours, Typhoon Forrest went from a 75 mph Category 1 storm to a 175 mph Category 5 behemoth. Its minimum surface pressure estimated from a reconnaissance aircraft plunged from 976 to 876 millibars, a world record 100 millibar plunge in just over 23 hours.
Forrest rapidly intensified in the Philippine Sea between Guam, the Philippines and Taiwan, with some of the hottest ocean water anywhere on Earth.
Though not as violent, Forrest later ripped through parts of Japan's Ryukyu Islands before it curved sharply east into Kyushu and Honshu, with up to 21 inches of rain triggering flash flooding and landslides. Forrest claimed 21 lives in Japan.
Among the notable rapid intensifiers this century were 2005's Wilma (97 millibars in 24 hours), 2015's Patricia (97 millibars in 24 hours) and 2019's Super Typhoon Hagibis (98 millibars in 24 hours).
Super Typhoon Forrest 1983
Jonathan Erdman is a senior meteorologist at weather.com and has been covering national and international weather since 1996. Extreme and bizarre weather are his favorite topics. Reach out to him on Bluesky, X (formerly Twitter) and Facebook.
Source: "AOL General"
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