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

For More Weather Information:

San Francisco Bay Area/Monterey, CA Local Forecast Office

3NM NW San Francisco CA

Marine Point Forecast

[NOTICE]

Today
SW 11kt

Gale Warning
Tonight
SSE 19kt

Gale Warning
Christmas Day
⇑S 32kt

Gale Warning
Thursday Night
SSW 31kt

Gale Warning
Friday
S 24kt
Friday Night
SSW 20kt
Saturday
NNE 13kt
Saturday Night
N 7kt
Sunday
NNE 13kt

Associated Zone Forecast which includes this point

Last Update: 8:40 am PST Dec 24, 2025
Forecast Valid: 8am PST Dec 24, 2025-6pm PST Dec 30, 2025

View Nearby Observations

Detailed Forecast

Today

SW wind 6 to 11 kt becoming SE in the afternoon. Winds could gust as high as 18 kt. Showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe.

Tonight

SSE wind 16 to 19 kt, with gusts as high as 41 kt. Showers and thunderstorms before 1am, then showers and possibly a thunderstorm, mainly after 1am. Some of the storms could be severe.

Christmas Day

S wind 21 to 26 kt increasing to 27 to 32 kt in the afternoon. Winds could gust as high as 40 kt. Showers likely and possibly a thunderstorm before 9am, then showers between 9am and 1pm, then showers and possibly a thunderstorm after 1pm. Some of the storms could be severe.

Thursday Night

SSW wind 27 to 31 kt, with gusts as high as 39 kt. Showers and possibly a thunderstorm before 7pm, then showers between 7pm and 10pm, then showers and possibly a thunderstorm after 10pm. Some of the storms could be severe.

Friday

S wind around 24 kt, with gusts as high as 31 kt. Showers, with thunderstorms also possible after 1pm.

Friday Night

SSW wind 15 to 20 kt. Showers likely and possibly a thunderstorm before 7pm, then showers likely between 7pm and 10pm, then a chance of showers and thunderstorms after 10pm.

Saturday

NNE wind 11 to 13 kt. A chance of showers, mainly before 10am.

Saturday Night

N wind around 7 kt. Mostly clear.

Sunday

NNE wind 9 to 13 kt. Mostly sunny.

Winds and waves higher in and near tstms.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.