Hurricanes are now twice as likely to zip from minor to whopper than decades ago

https://phys.org/news/2023-10-hurricanes-minor-whopper-decades.html

by Seth Borenstein

With warmer oceans serving as fuel, Atlantic hurricanes are now more than twice as likely as before to rapidly intensify from wimpy minor hurricanes to powerful and catastrophic, a study said Thursday.

Last month Hurricane Lee went from barely a hurricane at 80 mph (129 kph) to the most powerful Category 5 hurricane with 155 mph (249 kph) winds in 24 hours. In 2017, before it devastated Puerto Rico, Hurricane Maria went from a Category 1 storm with 90 mph (145 kph) to a top-of-the-chart whopper with 160 mph (257 kph) winds in just 15 hours.

The study looked at 830 Atlantic tropical cyclones since 1971. It found that in the last 20 years, 8.1% of the time storms powered from a Category 1 minor storm to a major hurricane in just 24 hours. That happened only 3.2% of the time from 1971 to 1990, according to a study in the journal Scientific Reports.

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