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 6:24:46 pm EST

Christmas Outlook
Quiet but kind of warm
Tonight: Mostly clear, 0% chance of rain, Lows near 70, NE to E winds 15 mph, decreasing to 10 to 15 mph
Christmas Day: Mostly sunny, 0% chance of rain, Highs near 80, NE winds near 10 mph, decreasing to 5 to 10 mph
Thursday night: Mostly clear, 10% rain chance, NE to E winds near 5 mph, becoming N to NE 5 to 10 mph
TONIGHT...Mostly clear. Lows near 70. Northeast to east winds near 15 mph, decreasing to 10 to 15 mph.
Small Craft Advisory in effect for Florida Straits
Small Craft Should Exercise Caution for Hawk Channel Until Winds Decrease
TONIGHT: Gentle to moderate NE breezes, except resh breezes, becoming moderate to fresh for FL Straits
Seas nearshore 1 to 2 ft; Seas Hawk Channel 2 to 4 ft, subsiding to 2 to 3 ft; Seas FL Straits 4 to 6 ft; Seas Outer Gulf 2 to 3 ft
Bayside waters a light to moderate chop; Nearshore waters in Hawk Channel choppy, becoming a moderate chop
Small Craft Advisory in effect for Florida Straits
Small Craft Should Exercise Caution for Hawk Channel Until Winds Decrease
TONIGHT: Gentle to moderate NE breezes, except resh breezes, becoming moderate to fresh for FL Straits
Seas nearshore 1 to 2 ft; Seas Hawk Channel 2 to 4 ft, subsiding to 2 to 3 ft; Seas FL Straits 4 to 6 ft; Seas Outer Gulf 2 to 3 ft
Bayside waters a light to moderate chop; Nearshore waters in Hawk Channel choppy, becoming a moderate chop

 


 

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