Heavy Snow and Disruptive Ice in the Upper Midwest; Severe Thunderstorms in the Southern Plains

A late season winter storm will produce a combination of heavy snow and disruptive ice starting this evening in the Northern Plains and moving into the Upper Midwest and Great Lakes by tonight continuing through Thursday. Severe thunderstorms will likely produce severe wind gusts, large hail, a few tornadoes, and heavy rainfall across the southern and central Plains today. Read More >

15NM SSW San Francisco CA

Marine Point Forecast

[NOTICE]
    • Today

      Today:SW wind 11 to 18 kt. Rain likely, mainly before 4pm.   Mixed swell...W 2 ft at 8 seconds and SSW 1 ft at 5 seconds. Wind waves 1 to 2 ft.

      SW 18kt
      2-3ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:SW wind 14 to 19 kt becoming NW after midnight. Rain, mainly before 1am.   Mixed swell...WNW 1 ft at 12 seconds and SW 3 ft at 5 seconds  building to  at 12 seconds . Wind waves 2 to 3 ft.

      NW 19kt
      2-4ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:NNW wind 16 to 20 kt. Sunny. Mixed swell...WNW 2 ft at 10 seconds and SSW 1 ft at 12 seconds  decreasing to  at 9 seconds . Wind waves 3 to 4 ft.

      NNW 20kt
      5-6ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday Night

      Thursday Night:NW wind 15 to 24 kt. Mostly clear. Mixed swell...WNW 6 ft and SSW 1 ft. Wind waves around 4 ft.

      NW 24kt
      8ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:NW wind 11 to 13 kt. Sunny. . Wind waves around 3 ft.

      NW 13kt
      6ft

    • Friday Night

      Friday Night:NW wind 9 to 14 kt becoming variable and less than 5 kt in the evening. Mostly clear. . Wind waves 2 to 3 ft.

      NW 14kt⇓
      5ft

    • Saturday

      Saturday:NE wind 6 to 10 kt. Mostly sunny. . Wind waves around 1 ft.

      NE 10kt
      4ft

    • Saturday Night

      Saturday Night:NW wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. . Waves 3 to 4 ft.

      NW 6kt⇓
      3-4ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming W around 6 kt in the afternoon. Sunny. . Waves around 3 ft.

      ⇑W 6kt
      3ft


Associated Zone Forecast which includes this point

Last Update: 2:36 am PDT Apr 1, 2026
Forecast Valid: 5am PDT Apr 1, 2026-6pm PDT Apr 7, 2026

View Nearby Observations

Detailed Forecast


Today
SW wind 11 to 18 kt. Rain likely, mainly before 4pm. Mixed swell...W 2 ft at 8 seconds and SSW 1 ft at 5 seconds. Wind waves 1 to 2 ft.
Tonight
SW wind 14 to 19 kt becoming NW after midnight. Rain, mainly before 1am. Mixed swell...WNW 1 ft at 12 seconds and SW 3 ft at 5 seconds building to at 12 seconds . Wind waves 2 to 3 ft.
Thursday
NNW wind 16 to 20 kt. Sunny. Mixed swell...WNW 2 ft at 10 seconds and SSW 1 ft at 12 seconds decreasing to at 9 seconds . Wind waves 3 to 4 ft.
Thursday Night
NW wind 15 to 24 kt. Mostly clear. Mixed swell...WNW 6 ft and SSW 1 ft. Wind waves around 4 ft.
Friday
NW wind 11 to 13 kt. Sunny. . Wind waves around 3 ft.
Friday Night
NW wind 9 to 14 kt becoming variable and less than 5 kt in the evening. Mostly clear. . Wind waves 2 to 3 ft.
Saturday
NE wind 6 to 10 kt. Mostly sunny. . Wind waves around 1 ft.
Saturday Night
NW wind around 6 kt becoming variable and less than 5 kt in the evening. Partly cloudy. . Waves 3 to 4 ft.
Sunday
Variable winds less than 5 kt becoming W around 6 kt in the afternoon. Sunny. . Waves around 3 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: 37.56°N 122.58°W
Last Update: 2:36 am PDT Apr 1, 2026
Forecast Valid: 5am PDT Apr 1, 2026-6pm PDT Apr 7, 2026
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