Severe Thunderstorms over the Plains, Heavy Rain Threat Continues over Portions of the Mississippi Valley

Heavy rainfall with localized flooding will remain possible over portions of the Mississippi Valley and the Plains through midweek. In addition, severe thunderstorms will be possible over the southern and central Plains. Some of the storms could contain damaging winds and large hail.
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30NM WNW San Francisco CA

Marine Point Forecast

[NOTICE]
  • Tonight

    Patchy Fog

    W 6kt
    3ft
  • Friday

    Patchy Fog

    Light Wind
    3ft
  • Friday
    Night

    Patchy Fog

    Light Wind
    3ft
  • Saturday

    Patchy Fog

    Winds IncreasingW 8kt
    3ft
  • Saturday
    Night

    Patchy Fog

    WNW 16kt
    4ft
  • Sunday

    Patchy Fog

    Winds IncreasingESE 6kt
    4ft
  • Sunday
    Night

    Patchy Fog

    Light Wind
    3ft
  • Monday

    Patchy Fog

    Winds IncreasingS 6kt
    3ft
  • Monday
    Night

    Mostly Cloudy

    SSW 6ktWinds Decreasing
    3ft

Associated Zone Forecast which includes this point

Last Update: 8:03 am PDT Aug 17, 2017
Forecast Valid: 7pm PDT Aug 17, 2017-6pm PDT Aug 24, 2017

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Detailed Forecast


Synopsis: PZZ500-180445- 233 PM PDT Thu Aug 17 2017 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Winds will be generally light and variable over the coastal waters this evening and overnight. Locally breezy conditions are possible through the evening near the Golden Gate Gap and Angel Island. Expect increasing northwest winds beginning late Friday and lasting through the weekend as the ridge strengthens further. $$

Tonight
W wind around 6 kt. Patchy fog after 11pm. Mixed swell...SSW 3 ft at 12 seconds and S 1 ft at 15 seconds becoming E. Wind waves around 1 ft.
Friday
Variable winds 5 kt or less. Patchy fog before 11am. Mixed swell...SSW 3 ft at 12 seconds and E 1 ft at 16 seconds becoming S. Wind waves around 1 ft.
Friday Night
Variable winds 5 kt or less. Patchy fog after 11pm. Mixed swell...SSW 3 ft at 11 seconds and E 1 ft at 15 seconds. Wind waves around 1 ft.
Saturday
Variable winds less than 5 kt becoming W 5 to 8 kt in the afternoon. Patchy fog before 11am. Mixed swell...WNW 3 ft and E 1 ft becoming S. Wind waves around 1 ft.
Saturday Night
WNW wind around 16 kt. Patchy fog after 11pm. Mixed swell...WNW 3 ft and S 1 ft. Wind waves around 2 ft.
Sunday
Variable winds less than 5 kt becoming ESE around 6 kt in the afternoon. Patchy fog before 11am. Mixed swell...WNW 4 ft and S 1 ft. Wind waves around 1 ft.
Sunday Night
Variable winds 5 kt or less. Patchy fog after 11pm. Mixed swell...WNW 3 ft and S 1 ft. Wind waves around 1 ft.
Monday
Variable winds less than 5 kt becoming S around 6 kt in the afternoon. Patchy fog before 11am. Mixed swell...WNW 3 ft and S 1 ft. Wind waves around 1 ft.
Monday Night
SSW wind around 6 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Mixed swell...WNW 3 ft and S 1 ft. Wind waves around 1 ft.

.....SAN FRANCISCO BAR/FOURFATHOM BANK FORECAST..... IN THE DEEP WATER CHANNEL...Combined seas 4 to 5 ft with a dominant swell period of 10 seconds. ACROSS THE BAR...Combined seas 4 to 6 ft with a dominant swell period of 10 seconds. Maximum ebb current of 1.8 knots at 12:18 AM Friday and 0.9 knots at 01:24 PM Friday.

*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: 38°N 122.99°W
Last Update: 8:03 am PDT Aug 17, 2017
Forecast Valid: 7pm PDT Aug 17, 2017-6pm PDT Aug 24, 2017
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