Increasing Risk for Flash and River Flooding Through the Weekend

A storm system will track across the central U.S. and set the stage for severe thunderstorms and widespread heavy rainfall through the weekend. There will be a threat for flash and river flooding for portions of the Southern Plains into the Upper Midwest.
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19NM S San Francisco CA

Marine Point Forecast

[NOTICE]
  • Today

    Sunny

    NW 17kt
    7ft

    Small Craft Advisory
    Small Craft Advisory

  • Tonight

    Clear

    NNW 21ktWinds Decreasing
    7ft

    Small Craft Advisory
    Small Craft Advisory

  • Saturday

    Sunny

    NW 15kt
    5-6ft
  • Saturday
    Night

    Clear

    NW 15kt
    5-6ft
  • Sunday

    Sunny

    NW 15kt
    6ft
  • Sunday
    Night

    Clear

    NW 13kt
    Waves Building9ft
  • Monday

    Sunny

    Winds IncreasingNW 9kt
    9ftWaves Subsiding
  • Monday
    Night

    Mostly Clear

    NW 16kt
    7-9ft
  • Tuesday

    Sunny

    NNW 8kt
    8-9ft

Associated Zone Forecast which includes this point

Last Update: 9:29 am PDT Apr 28, 2017
Forecast Valid: 11am PDT Apr 28, 2017-6pm PDT May 4, 2017

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT...

Synopsis: GREATER FARALLONES...AND CORDELL BANK NATIONAL MARINE SANCTUARIES...

NO UPDATES FROM PREVIOUS MARINE SYNOPSIS. STRONG NORTHWEST WINDS WILL CONTINUE TODAY AND INTO THE WEEKEND AS HIGH PRESSURE LOOMS OFF THE COAST. OCCASIONAL GALE FORCE GUSTS ARE POSSIBLE ACROSS THE COASTAL WATERS. STEEP FRESH SEAS WITH RELATIVELY SHORT PERIODS WILL DEVELOP IN RESPONSE TO THE WINDS BRINGING HAZARDOUS CONDITIONS.

Today
NW wind around 17 kt. Sunny. Mixed swell...W 5 ft at 11 seconds and SSE 1 ft at 13 seconds. Wind waves around 2 ft.
Tonight
NNW wind 16 to 21 kt decreasing to 6 to 11 kt after midnight. Clear. Mixed swell...W 7 ft at 11 seconds and SSE 1 ft at 13 seconds. Wind waves 1 to 2 ft.
Saturday
NW wind 7 to 15 kt. Sunny. Mixed swell...W 5 to 6 ft at 11 seconds and SW 1 ft at 13 seconds. Wind waves 1 to 2 ft.
Saturday Night
NW wind 8 to 15 kt. Clear. Mixed swell...W 6 ft and SSW 1 ft. Wind waves around 1 ft.
Sunday
NW wind 8 to 15 kt. Sunny. Mixed swell...W 5 to 6 ft and SW 1 ft. Wind waves around 1 ft.
Sunday Night
NW wind 8 to 13 kt. Clear. Mixed swell...W 8 ft and SW 1 ft. Wind waves around 1 ft.
Monday
Variable winds less than 5 kt becoming NW 5 to 9 kt in the afternoon. Sunny. Mixed swell...W 7 ft and SW 1 ft. Wind waves around 1 ft.
Monday Night
NW wind 14 to 16 kt. Mostly clear. Mixed swell...W 8 ft and SW 1 ft. Wind waves around 1 ft.
Tuesday
NNW wind around 8 kt. Sunny. Mixed swell...W 8 ft and SW 1 ft. Wind waves around 1 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...COMBINED SEAS 6 TO 8 FT AT 11 SECONDS DECREASING TO 5 TO 7 FT AT 10 SECONDS SATURDAY. ACROSS THE BAR...COMBINED SEAS 7 TO 10 FT AT 11 SECONDS DECREASING TO 6 TO 8 FT AT 10 SECONDS SATURDAY. MAXIMUM EBB CURRENT OF 1.2 KNOTS AT 05:36 PM FRIDAY AND 2 KNOTS AT 05:30 AM SATURDAY.

*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: 37.47°N 122.47°W
Last Update: 9:29 am PDT Apr 28, 2017
Forecast Valid: 11am PDT Apr 28, 2017-6pm PDT May 4, 2017
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