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 >

Hazardous Weather Conditions

Gale Warning in effect from December 25, 09:00 AM PST until December 26, 03:00 AM PST

Last Update: 857 AM PST Thu Dec 25 2025

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For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

8NM S Big Sur CA

Marine Zone Forecast

Today

S wind 25 to 35 kt, rising to 30 to 40 kt late. Seas 9 to 13 ft. Wave detail: S 12 ft at 10 seconds and NW 5 ft at 17 seconds. A slight chance of tstms. Rain.

Tonight

SW wind 25 to 35 kt. Seas 9 to 13 ft. Wave detail: SW 10 ft at 10 seconds and W 10 ft at 12 seconds. A slight chance of tstms in the evening. Rain.

Fri

S wind 25 to 30 kt, easing to 15 to 20 kt in the afternoon. Seas 11 to 15 ft. Wave detail: SW 10 ft at 11 seconds and W 14 ft at 14 seconds. Rain.

Fri Night

W wind 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Seas 11 to 15 ft, subsiding to 9 to 13 ft after midnight. Wave detail: S 3 ft at 7 seconds and NW 14 ft at 14 seconds. Rain, mainly in the evening.

Sat

NW wind 15 to 20 kt. Seas 8 to 11 ft. Wave detail: W 10 ft at 13 seconds and SW 4 ft at 14 seconds. A chance of rain.

Sat Night

N wind 15 to 20 kt, becoming NE 10 to 15 kt after midnight. Seas 5 to 8 ft. Wave detail: NW 8 ft at 11 seconds.

Sun

N wind 5 to 10 kt. Seas 4 to 6 ft. Wave detail: NW 5 ft at 10 seconds.

Sun Night

NE wind 5 to 10 kt. Seas 3 to 4 ft. Wave detail: NW 4 ft at 9 seconds.

Mon

NE wind 5 to 10 kt, backing to N in the afternoon. Seas 3 to 4 ft. Wave detail: NW 3 ft at 9 seconds.

Mon Night

NE wind 5 to 10 kt. Seas around 3 ft. Wave detail: NW 3 ft at 9 seconds.

winds and seas higher in and near tstms.