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

Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

9NM SSE San Francisco CA

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:Variable winds 5 kt or less. Increasing clouds. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

      Light Wind
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming E around 6 kt in the morning. Sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

      ⇑E 6kt
      < 1ft

    • Sunday Night

      Sunday Night:NE wind around 7 kt. Mostly clear. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.

      NE 7kt
      < 1ft

    • Monday

      Monday:NE wind around 9 kt. Sunny. N swell 0 ft. Wind waves 1 ft or less.

      NE 9kt
      < 1ft

    • Monday Night

      Monday Night:ENE wind around 6 kt. Mostly clear. N swell 0 ft. Wind waves 1 ft or less.

      ENE 6kt
      < 1ft

    • Tuesday

      Tuesday:ENE wind 7 to 9 kt. Sunny. N swell 0 ft. Wind waves 1 ft or less.

      ENE 9kt
      < 1ft

    • Tuesday Night

      Tuesday Night:ENE wind around 7 kt. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.

      ENE 7kt
      < 1ft

    • Wednesday

      Wednesday:ENE wind around 6 kt becoming variable and less than 5 kt in the afternoon. A slight chance of rain. N swell 0 ft. Wind waves 1 ft or less.

      ENE 6kt⇓
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds 5 kt or less. A chance of rain. N swell 0 ft. Wind waves 1 ft or less.

      Light Wind
      < 1ft


Associated Zone Forecast which includes this point

Last Update: 12:27 pm PST Dec 27, 2025
Forecast Valid: 7pm PST Dec 27, 2025-6pm PST Jan 3, 2026

View Nearby Observations

Detailed Forecast


Tonight
Variable winds 5 kt or less. Increasing clouds. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Sunday
Variable winds less than 5 kt becoming E around 6 kt in the morning. Sunny. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Sunday Night
NE wind around 7 kt. Mostly clear. N swell 0 ft at 0 seconds. Wind waves 1 ft or less.
Monday
NE wind around 9 kt. Sunny. N swell 0 ft. Wind waves 1 ft or less.
Monday Night
ENE wind around 6 kt. Mostly clear. N swell 0 ft. Wind waves 1 ft or less.
Tuesday
ENE wind 7 to 9 kt. Sunny. N swell 0 ft. Wind waves 1 ft or less.
Tuesday Night
ENE wind around 7 kt. Partly cloudy. N swell 0 ft. Wind waves 1 ft or less.
Wednesday
ENE wind around 6 kt becoming variable and less than 5 kt in the afternoon. A slight chance of rain. N swell 0 ft. Wind waves 1 ft or less.
Wednesday Night
Variable winds 5 kt or less. A chance of rain. N swell 0 ft. Wind waves 1 ft or less.

*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: 37.62°N 122.34°W
Last Update: 12:27 pm PST Dec 27, 2025
Forecast Valid: 7pm PST Dec 27, 2025-6pm PST Jan 3, 2026
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