Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

17NM W San Francisco CA

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NNW wind 6 to 8 kt. Mostly cloudy. Mixed swell...W 3 ft at 14 seconds and SSW 1 ft at 12 seconds. Wind waves around 1 ft.

      NNW 8kt
      3ft

    • Tuesday

      Tuesday:NE wind 7 to 10 kt becoming NNW in the afternoon. Partly sunny. Mixed swell...W 4 ft at 13 seconds and SSW 1 ft at 14 seconds. Wind waves around 1 ft.

      ENE 10kt
      4ft

    • Tuesday Night

      Tuesday Night:N wind around 6 kt. Mostly cloudy. Mixed swell...W 4 ft at 15 seconds and SSW 1 ft at 14 seconds  decreasing to  at 11 seconds . Wind waves around 1 ft.

      N 6kt
      4ft

    • Wednesday

      Wednesday:NNE wind around 6 kt becoming NW in the afternoon. Mostly cloudy. Mixed swell...W 4 ft and SSW 1 ft. Wind waves 1 ft or less.

      N 6kt
      4ft

    • Wednesday Night

      Wednesday Night:NW wind around 6 kt. Mostly cloudy. Mixed swell...W 4 ft and SSW 1 ft. Wind waves around 1 ft.

      NW 6kt
      4ft

    • Thursday

      Thursday:WNW wind around 7 kt. Partly sunny. Mixed swell...W 4 ft and SSW 1 ft. Wind waves around 1 ft.

      WNW 7kt
      4ft

    • Thursday Night

      Thursday Night:NW wind around 9 kt. Partly cloudy. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 1 ft.

      NW 9kt
      4ft

    • Friday

      Friday:NNW wind around 8 kt. Mostly sunny. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 1 ft.

      NNW 8kt
      4ft

    • Friday Night

      Friday Night:NNE wind around 8 kt. Mostly clear. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 1 ft.

      NNE 8kt
      4ft


Associated Zone Forecast which includes this point

Last Update: 1:15 pm PST Jan 19, 2026
Forecast Valid: 4pm PST Jan 19, 2026-6pm PST Jan 26, 2026

View Nearby Observations

Detailed Forecast


Tonight
NNW wind 6 to 8 kt. Mostly cloudy. Mixed swell...W 3 ft at 14 seconds and SSW 1 ft at 12 seconds. Wind waves around 1 ft.
Tuesday
NE wind 7 to 10 kt becoming NNW in the afternoon. Partly sunny. Mixed swell...W 4 ft at 13 seconds and SSW 1 ft at 14 seconds. Wind waves around 1 ft.
Tuesday Night
N wind around 6 kt. Mostly cloudy. Mixed swell...W 4 ft at 15 seconds and SSW 1 ft at 14 seconds decreasing to at 11 seconds . Wind waves around 1 ft.
Wednesday
NNE wind around 6 kt becoming NW in the afternoon. Mostly cloudy. Mixed swell...W 4 ft and SSW 1 ft. Wind waves 1 ft or less.
Wednesday Night
NW wind around 6 kt. Mostly cloudy. Mixed swell...W 4 ft and SSW 1 ft. Wind waves around 1 ft.
Thursday
WNW wind around 7 kt. Partly sunny. Mixed swell...W 4 ft and SSW 1 ft. Wind waves around 1 ft.
Thursday Night
NW wind around 9 kt. Partly cloudy. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 1 ft.
Friday
NNW wind around 8 kt. Mostly sunny. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 1 ft.
Friday Night
NNE wind around 8 kt. Mostly clear. Mixed swell...WNW 4 ft and SSW 1 ft. Wind waves around 1 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 3 feet at 14 seconds. ACROSS THE BAR...Mixed seas of 3 to 4 feet at 14 seconds. Maximum ebb current of 3.1 kt at 04:32 PM Monday and 1.5 kt at 05:31 AM 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: 37.76°N 122.78°W
Last Update: 1:15 pm PST Jan 19, 2026
Forecast Valid: 4pm PST Jan 19, 2026-6pm PST Jan 26, 2026
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