Pacific region sets record for big, long-lasting hurricanes
Summary
The Pacific region east of the international date line has set a new record for strong, long-lasting hurricanes this season. Scientists say this is mainly due to a powerful El Niño weather pattern that warms ocean water and changes winds, helping hurricanes to grow and last longer.Key Facts
- The area east of the international date line, which affects Hawaii, Mexico, and the U.S. West Coast, has broken the record for the most intense and long-lasting hurricanes.
- Accumulated Cyclone Energy (ACE), a measure of storm strength and duration, has surpassed the old record set in 2018.
- Hurricanes Simon and others have recently formed, with Simon reaching Category 4 strength.
- A strong El Niño is weakening winds that normally stop hurricanes and is warming the ocean, providing more fuel for storms.
- The Atlantic hurricane activity is low this year because El Niño creates conditions that weaken storms there.
- Warm ocean water and a weather pattern called a gyre over Central America have helped start multiple storms.
- Recent Pacific hurricanes such as Nolo, Odalys, Polo, Rachel, and Simon have all been very strong, with Polo spending a record 2.5 days at Category 5.
- Climate change is also contributing to warmer ocean temperatures that support stronger hurricanes.
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