National Weather Service United States Department of Commerce

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 >

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Last Map Update: Wed, Dec 24, 2025 at 4:24:47 pm MST

A passing weather system will bring a wintry mix, including freezing rain, mostly through early Thursday. Plan for slippery spots on area roads and sidewalks. #MTwx
With freezing rain possible the next few nights, be sure to be very careful if you must be on the roads.
Areas of freezing rain are likely this evening and overnight tonight, which will make for some slick roads and sidewalks. Please use extra caution if you will be out and about tonight!

 

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