National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Hazardous Weather Conditions

12NM W San Francisco CA

Marine Point Forecast

[NOTICE]

    • New Year's Day

      New Year's Day:S wind around 22 kt, with gusts as high as 28 kt. A chance of rain. Mixed swell...WNW 2 ft at 11 seconds and S 2 ft at 7 seconds. Wind waves around 4 ft.

      S 22kt
      5ft

    • Tonight

      Tonight:S wind 17 to 21 kt, with gusts as high as 29 kt. Rain likely, mainly before 3am. Mixed swell...WNW 3 ft at 11 seconds and S 3 ft at 7 seconds. Wind waves around 4 ft.

      S 21kt
      5-6ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:SSE wind 20 to 24 kt, with gusts as high as 32 kt. Rain, mainly after 4pm. Mixed swell...W 2 to 3 ft at 11 seconds and S 3 ft at 7 seconds. Wind waves around 4 ft.

      SSE 24kt
      5ft

      Gale Warning
      Gale Warning

    • Friday Night

      Friday Night:SSE wind 29 to 31 kt, with gusts as high as 44 kt. Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Mixed swell...WNW 1 to 2 ft and S 8 ft. Wind waves 5 to 6 ft.

      SSE 31kt
      Waves Building10ft

      Gale Warning
      Gale Warning

    • Saturday

      Saturday:S wind around 27 kt, with gusts as high as 35 kt. Rain before 4pm, then showers and possibly a thunderstorm after 4pm. Mixed swell...W 2 ft and SSW 6 to 8 ft. Wind waves around 5 ft.

      S 27kt
      8-10ft

    • Saturday Night

      Saturday Night:S wind around 23 kt. Rain and possibly a thunderstorm before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain and possibly a thunderstorm after 4am. Mixed swell...WNW 3 ft and SSW 10 ft. Wind waves around 4 ft.

      S 23kt
      10-11ft

    • Sunday

      Sunday:SW wind 16 to 20 kt, with gusts as high as 26 kt. Rain. Mixed swell...W 3 ft and SW 7 to 9 ft. Wind waves 3 to 4 ft.

      SW 20kt
      8-10ft

    • Sunday Night

      Sunday Night:SSW wind around 13 kt. Rain. Mixed swell...W 3 ft and SSW 5 to 6 ft. Wind waves around 2 ft.

      SSW 13kt
      6-7ft

    • Monday

      Monday:S wind 13 to 15 kt. Rain. Mixed swell...W 3 ft and SW 3 to 4 ft. Wind waves around 2 ft.

      S 15kt
      5-6ft


Associated Zone Forecast which includes this point

Last Update: 12:32 pm PST Jan 1, 2026
Forecast Valid: 4pm PST Jan 1, 2026-6pm PST Jan 8, 2026

View Nearby Observations

Detailed Forecast


New Year's Day
S wind around 22 kt, with gusts as high as 28 kt. A chance of rain. Mixed swell...WNW 2 ft at 11 seconds and S 2 ft at 7 seconds. Wind waves around 4 ft.
Tonight
S wind 17 to 21 kt, with gusts as high as 29 kt. Rain likely, mainly before 3am. Mixed swell...WNW 3 ft at 11 seconds and S 3 ft at 7 seconds. Wind waves around 4 ft.
Friday
SSE wind 20 to 24 kt, with gusts as high as 32 kt. Rain, mainly after 4pm. Mixed swell...W 2 to 3 ft at 11 seconds and S 3 ft at 7 seconds. Wind waves around 4 ft.
Friday Night
SSE wind 29 to 31 kt, with gusts as high as 44 kt. Rain before 10pm, then showers and possibly a thunderstorm between 10pm and 1am, then rain after 1am. Mixed swell...WNW 1 to 2 ft and S 8 ft. Wind waves 5 to 6 ft.
Saturday
S wind around 27 kt, with gusts as high as 35 kt. Rain before 4pm, then showers and possibly a thunderstorm after 4pm. Mixed swell...W 2 ft and SSW 6 to 8 ft. Wind waves around 5 ft.
Saturday Night
S wind around 23 kt. Rain and possibly a thunderstorm before 1am, then showers and possibly a thunderstorm between 1am and 4am, then rain and possibly a thunderstorm after 4am. Mixed swell...WNW 3 ft and SSW 10 ft. Wind waves around 4 ft.
Sunday
SW wind 16 to 20 kt, with gusts as high as 26 kt. Rain. Mixed swell...W 3 ft and SW 7 to 9 ft. Wind waves 3 to 4 ft.
Sunday Night
SSW wind around 13 kt. Rain. Mixed swell...W 3 ft and SSW 5 to 6 ft. Wind waves around 2 ft.
Monday
S wind 13 to 15 kt. Rain. Mixed swell...W 3 ft and SW 3 to 4 ft. Wind waves around 2 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 37.78°N 122.67°W
Last Update: 12:32 pm PST Jan 1, 2026
Forecast Valid: 4pm PST Jan 1, 2026-6pm PST Jan 8, 2026
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