Prolonged Atmospheric River in the Pacific Northwest; Snow and High Winds in the North-Central U.S.

A prolonged atmospheric river will continue impacting the Pacific Northwest with heavy rainfall which has lead to areas of urban and river flooding along with gusty winds into Thursday. A clipper will bring heavy snow, some mixed wintry precipitation, and gusty to high winds across the northern Plains, Upper Midwest, and the Great Lakes into Thursday morning. Read More >

12NM W San Francisco CA

Marine Point Forecast

[NOTICE]
    • Today

      Today:NNE wind 6 to 8 kt becoming NW in the afternoon. Sunny. Mixed swell...W 3 ft at 11 seconds and SSW 1 ft at 13 seconds becoming SW. Wind waves around 1 ft.

      NNE 8kt
      3ft

    • Tonight

      Tonight:N wind around 6 kt becoming NE after midnight. Mostly clear. Mixed swell...W 4 ft at 12 seconds and SSW 1 ft at 13 seconds. Wind waves around 1 ft.

      N 6kt
      4ft

    • Wednesday

      Wednesday:NNE wind around 8 kt. Sunny. Mixed swell...WNW 3 to 4 ft at 13 seconds and SSW 3 ft at 13 seconds  decreasing to  at 6 seconds . Wind waves around 1 ft.

      NNE 8kt
      4ft

    • Wednesday Night

      Wednesday Night:N wind around 6 kt. Mostly clear. Mixed swell...W 4 ft and SSW 1 to 2 ft. Wind waves 1 ft or less.

      N 6kt
      4ft

    • Thursday

      Thursday:NNE wind around 8 kt. Sunny. Mixed swell...W 4 to 5 ft and SSW 3 ft becoming SW. Wind waves around 1 ft.

      NNE 8kt
      5ft

    • Thursday Night

      Thursday Night:NNE wind around 6 kt. Mostly clear. Mixed swell...WNW 5 ft and SSW 1 to 3 ft. Wind waves around 1 ft.

      NNE 6kt
      5ft

    • Friday

      Friday:NE wind around 9 kt. Sunny. Mixed swell...W 4 ft and SW 2 ft. Wind waves around 1 ft.

      NE 9kt
      4-5ft

    • Friday Night

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

      Light Wind
      3-4ft

    • Saturday

      Saturday:ENE wind around 6 kt. Mostly sunny. Mixed swell...WNW 2 to 3 ft and SSW 1 ft. Wind waves around 1 ft.

      ENE 6kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 2:42 am PST Dec 9, 2025
Forecast Valid: 8am PST Dec 9, 2025-6pm PST Dec 15, 2025

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Detailed Forecast


Today
NNE wind 6 to 8 kt becoming NW in the afternoon. Sunny. Mixed swell...W 3 ft at 11 seconds and SSW 1 ft at 13 seconds becoming SW. Wind waves around 1 ft.
Tonight
N wind around 6 kt becoming NE after midnight. Mostly clear. Mixed swell...W 4 ft at 12 seconds and SSW 1 ft at 13 seconds. Wind waves around 1 ft.
Wednesday
NNE wind around 8 kt. Sunny. Mixed swell...WNW 3 to 4 ft at 13 seconds and SSW 3 ft at 13 seconds decreasing to at 6 seconds . Wind waves around 1 ft.
Wednesday Night
N wind around 6 kt. Mostly clear. Mixed swell...W 4 ft and SSW 1 to 2 ft. Wind waves 1 ft or less.
Thursday
NNE wind around 8 kt. Sunny. Mixed swell...W 4 to 5 ft and SSW 3 ft becoming SW. Wind waves around 1 ft.
Thursday Night
NNE wind around 6 kt. Mostly clear. Mixed swell...WNW 5 ft and SSW 1 to 3 ft. Wind waves around 1 ft.
Friday
NE wind around 9 kt. Sunny. Mixed swell...W 4 ft and SW 2 ft. Wind waves around 1 ft.
Friday Night
Variable winds 5 kt or less. Mostly clear. Mixed swell...W 3 ft and SSW 1 to 2 ft. Wind waves 1 ft or less.
Saturday
ENE wind around 6 kt. Mostly sunny. Mixed swell...WNW 2 to 3 ft and SSW 1 ft. Wind waves around 1 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 3 to 4 feet at 10 seconds. ACROSS THE BAR...Mixed seas of 4 to 5 feet at 10 seconds. Maximum ebb current of 1.4 kt at 08:01 AM Tuesday and 3.0 kt at 07:20 PM Tuesday.

*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: 2:42 am PST Dec 9, 2025
Forecast Valid: 8am PST Dec 9, 2025-6pm PST Dec 15, 2025
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