Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Last Update: 500 AM ChST Fri Dec 26 2025

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For More Weather Information:

Tiyan, GU Local Forecast Office

9NM SSE Rota GU

Marine Zone Forecast


Today
East wind 5 to 15 kt. Seas 7 to 9 ft. Wave detail: northeast 7 ft at 11 seconds, east 2 ft at 4 seconds and north 2 ft at 10 seconds.
Tonight And Saturday
East wind 5 to 10 kt. Seas 6 to 8 ft. wave detail: northeast 7 ft at 11 seconds, east 2 ft at 4 seconds and north 2 ft at 10 seconds.
Saturday Night
East wind 10 kt. Seas 5 to 7 ft. Wave detail: northeast 6 ft at 11 seconds, east 2 ft at 4 seconds and north 2 ft at 10 seconds.
Sunday And Monday
East wind 10 kt. Seas 6 to 8 ft. Wave detail: north 7 ft at 10 seconds, east 2 ft at 4 seconds and east 2 ft at 10 seconds.
Tuesday
East wind 5 to 10 kt. Seas 5 to 6 ft. Wave detail: northeast 6 ft at 9 seconds and east 2 ft at 4 seconds.



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500 AM ChST Fri Dec 26 2025
 
 

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