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Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

12NM W San Francisco CA

Marine Point Forecast

[NOTICE]

    • Today

      Today:NE wind 6 to 8 kt becoming NNW in the afternoon. Sunny. Mixed swell...WNW 4 ft at 13 seconds and SSW 3 ft at 7 seconds. Wind waves around 1 ft.

      NE 8kt
      5ft

    • Tonight

      Tonight:NNE wind 5 to 7 kt. Mostly clear. Mixed swell...W 5 ft at 13 seconds and S 1 to 3 ft at 6 seconds becoming SSW at 14 seconds . Wind waves around 1 ft.

      NNE 7kt
      5ft

    • Thursday

      Thursday:NNE wind around 9 kt. Sunny. Mixed swell...WNW 5 to 6 ft at 14 seconds and SSW 3 ft at 15 seconds decreasing to at 9 seconds . Wind waves around 1 ft.

      NNE 9kt
      6ft

    • Thursday Night

      Thursday Night:NNE wind around 6 kt. Mostly clear. Mixed swell...WNW 6 ft and SW 1 to 3 ft. Wind waves 1 ft or less.

      NNE 6kt
      6ft

    • Friday

      Friday:NE wind around 9 kt. Sunny. Mixed swell...WNW 5 ft and SW 2 ft. Wind waves around 1 ft.

      NE 9kt
      5-6ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Mostly clear. Mixed swell...WNW 3 to 4 ft and SW 1 to 2 ft. Wind waves 1 ft or less.

      Light Wind
      3-5ft

    • Saturday

      Saturday:E wind 5 to 7 kt. Mostly sunny. Mixed swell...WNW 2 to 3 ft and SW 1 ft. Wind waves around 1 ft.

      E 7kt
      3ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. Patchy fog before 7pm. Mixed swell...W 2 ft and SW 1 ft. Wind waves 1 ft or less.

      Light Wind
      2ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming ENE around 6 kt. Patchy fog after 4pm. Mixed swell...W 2 ft and SSW 1 ft. Wind waves 1 ft or less.

      ⇑ENE 6kt
      2ft


Associated Zone Forecast which includes this point

Last Update: 12:26 am PST Dec 10, 2025
Forecast Valid: 11am PST Dec 10, 2025-6pm PST Dec 16, 2025

View Nearby Observations

Detailed Forecast


Today
NE wind 6 to 8 kt becoming NNW in the afternoon. Sunny. Mixed swell...WNW 4 ft at 13 seconds and SSW 3 ft at 7 seconds. Wind waves around 1 ft.
Tonight
NNE wind 5 to 7 kt. Mostly clear. Mixed swell...W 5 ft at 13 seconds and S 1 to 3 ft at 6 seconds becoming SSW at 14 seconds . Wind waves around 1 ft.
Thursday
NNE wind around 9 kt. Sunny. Mixed swell...WNW 5 to 6 ft at 14 seconds and SSW 3 ft at 15 seconds decreasing to at 9 seconds . Wind waves around 1 ft.
Thursday Night
NNE wind around 6 kt. Mostly clear. Mixed swell...WNW 6 ft and SW 1 to 3 ft. Wind waves 1 ft or less.
Friday
NE wind around 9 kt. Sunny. Mixed swell...WNW 5 ft and SW 2 ft. Wind waves around 1 ft.
Friday Night
Variable winds 5 kt or less. Mostly clear. Mixed swell...WNW 3 to 4 ft and SW 1 to 2 ft. Wind waves 1 ft or less.
Saturday
E wind 5 to 7 kt. Mostly sunny. Mixed swell...WNW 2 to 3 ft and SW 1 ft. Wind waves around 1 ft.
Saturday Night
Variable winds 5 kt or less. Patchy fog before 7pm. Mixed swell...W 2 ft and SW 1 ft. Wind waves 1 ft or less.
Sunday
Variable winds less than 5 kt becoming ENE around 6 kt. Patchy fog after 4pm. Mixed swell...W 2 ft and SSW 1 ft. Wind waves 1 ft or less.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 4 feet at 13 seconds. ACROSS THE BAR...Mixed seas of 4 to 5 feet at 13 seconds. Maximum ebb current of 1.5 kt at 09:03 AM Wednesday and 2.4 kt at 08:38 PM Wednesday.

*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: 12:26 am PST Dec 10, 2025
Forecast Valid: 11am PST Dec 10, 2025-6pm PST Dec 16, 2025
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