Wednesday March 12, 2025
AP News —
As extreme weather events have hit the world hard in recent years, one meteorology term — atmospheric rivers — has made the leap from scientific circles to common language, particularly in places that have been hit by them.
That stands to reason.
The heavy rain and wind events most known for dousing California and other parts of the West have been getting bigger, wetter and more frequent in the past 45 years as the world warms, according to a comprehensive study of atmospheric rivers in the current issue of the Journal of Climate.
Atmospheric rivers are long and relatively narrow bands of water vapor. They take water from oceans and flow through the sky dumping rain in prodigious amounts. They have increased in the area they soak by 6 to 9% since 1980, increased in frequency by 2 to 6% and are slightly wetter than before, the study said.