Powerful Storm to Impact Eastern Third of U.S. this weekend.

A developing storm system will bring a myriad of significant impacts this weekend. Heavy snow up to 18 inches from the Ohio Valley to the Northeast, and ice up to a quarter of an inch is forecast in places. Heavy rain may cause flash flooding from the Mid-South to the Mid-Atlantic. Severe thunderstorms with damaging winds and isolated tornadoes will be possible in the Deep South.
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5NM NNW San Francisco CA

Marine Point Forecast

[NOTICE]
  • Overnight

    Chance Showers

    Light Wind
  • Saturday

    Slight Chc Showers

    Winds IncreasingWSW 11km/h
  • Saturday
    Night

    Showers Likely

    SSW 16km/h
  • Sunday

    Showers Likely

    SSW 29km/h
  • Sunday
    Night

    Chance Showers

    W 45km/h
  • M.L.King
    Day

    Sunny

    NNW 27km/h
  • Monday
    Night

    Mostly Clear

    NW 26km/hWinds Decreasing
  • Tuesday

    Sunny

    NE 10km/h
  • Tuesday
    Night

    Mostly Clear

    Light Wind

Associated Zone Forecast which includes this point

Last Update: 6:25 pm PST Jan 18, 2019
Forecast Valid: 12am PST Jan 19, 2019-6pm PST Jan 25, 2019

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Detailed Forecast


Synopsis: PZZ500-191145- 917 PM PST Fri Jan 18 2019 .Synopsis for the Central California Coast and Bays Including the Monterey Bay...Greater Farallones...and Cordell Bank National Marine Sanctuaries... Moist air streaming through a medium upper level ridge will result in a few showers tonight. The upper level ridge will steadily move eastward Saturday allowing an upper level trough over the eastern Pacific to approach with a surface cool front with a chance of rain late in the weekend. An upper level ridge will redevelop by the middle of next week. $$

Overnight
Variable winds 5 km/h or less. A chance of showers, mainly before 4am.
Saturday
Variable winds less than 5 km/h becoming WSW 6 to 11 km/h in the afternoon. A slight chance of showers before 10am.
Saturday Night
SSW wind 8 to 16 km/h. Showers likely, mainly after 4am.
Sunday
SSW wind 27 to 29 km/h, with gusts as high as 37 km/h. Showers likely, mainly before 10am.
Sunday Night
W wind 42 to 45 km/h, with gusts as high as 60 km/h. A chance of showers before 10pm.
M.L.King Day
NNW wind around 27 km/h, with gusts as high as 37 km/h. Sunny.
Monday Night
NW wind 21 to 26 km/h decreasing to 10 to 15 km/h in the evening. Winds could gust as high as 35 km/h. Mostly clear.
Tuesday
NE wind 8 to 10 km/h. Sunny.
Tuesday Night
Variable winds 5 km/h or less. Mostly clear.

*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: 37.86°N 122.46°W
Last Update: 6:25 pm PST Jan 18, 2019
Forecast Valid: 12am PST Jan 19, 2019-6pm PST Jan 25, 2019
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