This article is from the Storms FAQ, by Chris Landsea landsea@aoml.noaa.gov with numerous contributions by others.
Typhoon Forrest in September 1983 in the Northwest Pacific Ocean
deepened by 100 mb (976 to 876 mb) in just under 24 hr (Roger Edson,
personal communication). Estimated surface sustained winds increased a
maximum of 30 kt in 6 hr and 85 kt in one day (from 65 to 150 kt).
 
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