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A study of 2020's storms of at least tropical storm-strength concluded that human-induced climate change increased extreme 3-hourly storm rainfall rates by 10%, and extreme 3-day accumulated rainfall amounts by 5%, and for hurricane-strength storms the figures increased to 11% and 8%. [35]
Hurricane Sandy, though only a Category 1 storm, was the fourth costliest U.S. hurricane on record, causing $81 billion in losses when it hit the Northeastern Seaboard in 2012.
Tropical cyclogenesis is extremely rare in the far southeastern Pacific Ocean, due to the cold sea-surface temperatures generated by the Humboldt Current, and also due to unfavorable wind shear; as such, Cyclone Yaku in March 2023 is the only known instance of a tropical cyclone impacting western South America.
The calculation originated as the Hurricane Destruction Potential (HDP) index, which sums the squares of tropical cyclones' maximum sustained winds while at hurricane strength, at least 64 knots (≥ 119 km/h; 74 mph) [4] at six-hour recorded intervals across an entire season. [5]
"The hurricane season got off to an early and violent start with Hurricane Beryl, the earliest category-5 Atlantic hurricane on record,” said National Oceanic and Atmospheric Administration head ...
A storm's strength is defined by its sustained wind speeds, with a Category 1 hurricane carrying wind speeds of 74-95 mph (119-153 kph), while a dangerous Category 5 storm has wind speeds of 157 ...
Smaller tropical cyclones are more likely to undergo quick intensity changes, including rapid intensification, potentially due to a greater sensitivity to their surrounding environments. [13] Hurricane Patricia experienced a 54 m/s (190 km/h; 120 mph) increase in its maximum sustained winds over 24 hours in 2015, setting a global record for 24 ...
5 major hurricanes (winds of 111 miles per hour or greater) One of the most intense hurricanes was Hurricane Beryl, which set records for being the earliest Category 5 storm in the Atlantic on record.