Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley this afternoon and evening. Large hail and strong winds are the primary threats. Read More >

12NM W San Francisco CA

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A slight chance of rain between noon and 5pm.   Mixed swell...W 2 ft at 8 seconds and SSW 1 ft at 14 seconds. Wind waves 1 ft or less.

      ⇑S 9kt
      3ft

    • Tonight

      Tonight:WSW wind 6 to 8 kt becoming S after midnight. A chance of rain before 2am, then a chance of showers and thunderstorms between 2am and 5am, then showers and possibly a thunderstorm after 5am.   Mixed swell...WNW 2 ft at 11 seconds and SW 2 ft at 8 seconds  building to  at 12 seconds . Wind waves 1 ft or less.

      WSW 8kt
      3ft

    • Friday

      Friday:S wind 7 to 13 kt. Showers and possibly a thunderstorm before 8am, then rain between 8am and 11am, then showers and possibly a thunderstorm after 11am.   Mixed swell...WNW 2 ft at 10 seconds and SW 1 to 2 ft at 11 seconds  decreasing to  at 7 seconds . Wind waves around 1 ft.

      S 13kt
      3ft

    • Friday Night

      Friday Night:SW wind 10 to 13 kt. A chance of showers and thunderstorms, then rain likely after 11pm.   Mixed swell...NW 2 ft and SW 2 ft. Wind waves around 1 ft.

      SW 13kt
      3ft

    • Saturday

      Saturday:SSW wind 13 to 18 kt increasing to 21 to 26 kt in the morning. Winds could gust as high as 33 kt. Rain before 11am, then showers and possibly a thunderstorm after 11am.   Mixed swell...WNW 1 to 2 ft and SW 2 ft. Wind waves 2 to 3 ft.

      ⇑SSW 26kt
      4-5ft

    • Saturday Night

      Saturday Night:SW wind 17 to 22 kt, with gusts as high as 28 kt. Showers and possibly a thunderstorm.   Mixed swell...W 3 ft and SSW 2 ft. Wind waves 3 to 4 ft.

      SW 22kt
      5-6ft

    • Sunday

      Sunday:W wind 14 to 16 kt. Showers likely and possibly a thunderstorm.   Mixed swell...W 4 ft and SSW 2 ft. Wind waves around 3 ft.

      W 16kt
      6-7ft

    • Sunday Night

      Sunday Night:NW wind 12 to 15 kt, with gusts as high as 21 kt. A slight chance of rain.   Mixed swell...W 4 ft and SSW 2 ft. Wind waves around 3 ft.

      NW 15kt
      5ft

    • Monday

      Monday:NW wind 12 to 16 kt. Sunny. Mixed swell...WNW 3 ft and S 2 ft. Wind waves around 2 ft.

      NW 16kt
      4ft


Associated Zone Forecast which includes this point

Last Update: 1:26 am PDT Apr 9, 2026
Forecast Valid: 10am PDT Apr 9, 2026-6pm PDT Apr 15, 2026

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Detailed Forecast


Today
Variable winds less than 5 kt becoming S 5 to 9 kt in the afternoon. A slight chance of rain between noon and 5pm. Mixed swell...W 2 ft at 8 seconds and SSW 1 ft at 14 seconds. Wind waves 1 ft or less.
Tonight
WSW wind 6 to 8 kt becoming S after midnight. A chance of rain before 2am, then a chance of showers and thunderstorms between 2am and 5am, then showers and possibly a thunderstorm after 5am. Mixed swell...WNW 2 ft at 11 seconds and SW 2 ft at 8 seconds building to at 12 seconds . Wind waves 1 ft or less.
Friday
S wind 7 to 13 kt. Showers and possibly a thunderstorm before 8am, then rain between 8am and 11am, then showers and possibly a thunderstorm after 11am. Mixed swell...WNW 2 ft at 10 seconds and SW 1 to 2 ft at 11 seconds decreasing to at 7 seconds . Wind waves around 1 ft.
Friday Night
SW wind 10 to 13 kt. A chance of showers and thunderstorms, then rain likely after 11pm. Mixed swell...NW 2 ft and SW 2 ft. Wind waves around 1 ft.
Saturday
SSW wind 13 to 18 kt increasing to 21 to 26 kt in the morning. Winds could gust as high as 33 kt. Rain before 11am, then showers and possibly a thunderstorm after 11am. Mixed swell...WNW 1 to 2 ft and SW 2 ft. Wind waves 2 to 3 ft.
Saturday Night
SW wind 17 to 22 kt, with gusts as high as 28 kt. Showers and possibly a thunderstorm. Mixed swell...W 3 ft and SSW 2 ft. Wind waves 3 to 4 ft.
Sunday
W wind 14 to 16 kt. Showers likely and possibly a thunderstorm. Mixed swell...W 4 ft and SSW 2 ft. Wind waves around 3 ft.
Sunday Night
NW wind 12 to 15 kt, with gusts as high as 21 kt. A slight chance of rain. Mixed swell...W 4 ft and SSW 2 ft. Wind waves around 3 ft.
Monday
NW wind 12 to 16 kt. Sunny. Mixed swell...WNW 3 ft and S 2 ft. Wind waves around 2 ft.

Winds and seas higher in and near tstms. .....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Mixed seas of 2 to 3 feet at 13 seconds. ACROSS THE BAR...Swell can be more than twice as high across the bar than surrounding waters. Waves are also more prone to break, particularly during strong ebb currents. Maximum ebb current of 1.7 kt at 09:07 AM Thursday and 0.7 kt at 11:56 PM Thursday.

*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: 1:26 am PDT Apr 9, 2026
Forecast Valid: 10am PDT Apr 9, 2026-6pm PDT Apr 15, 2026
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