2021 saw several destructive cyclones, including Hurricane Ida in the U.S. and Typhoon Rai in the Philippines. How does ocean temperature affect storms like those?
Warmer oceans provide extra moisture to the atmosphere. That extra moisture fuels storms, especially hurricanes. The result can be prodigious rainfall, as the U.S. saw from Ida, and widespread flooding as occurred in many places over the past year.
The storms may also become more intense, bigger and last longer. Several major flooding events have occurred in Australia this past year, and also in New Zealand. Bigger snowfalls can also occur in winter provided temperatures remain below about freezing because warmer air holds more moisture.
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