National Weather Service United States Department of Commerce

Unseasonably cold temperatures spreading into central U.S.

A strong cold front will usher a much colder air mass into the central and eastern U.S. for the end of the work week. Temperatures will be 10 to 20 degrees below average in some areas. Rain and snow will be possible across the Great Lakes on Friday as the system crosses the area. Heavy snow is possible in the central Appalachians Friday night.
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6NM NNW San Francisco CA

Marine Point Forecast [NOTICE]

Today

Showers

Winds IncreasingW 12kt

Tonight

Showers Likely

Winds IncreasingW 9kt

Saturday

Chance Showers

W 12kt

Saturday
Night

Patchy Fog

W 12kt

Sunday

Patchy Fog

Light Wind

Sunday
Night

Mostly Clear

NW 6kt

Monday

Mostly Sunny

Light Wind

Monday
Night

Partly Cloudy

Light Wind

Tuesday

Mostly Sunny

Light Wind

Associated Zone Forecast which includes this point

Last Update: 2:51 am PDT Oct 31, 2014
Forecast Valid: 6am PDT Oct 31, 2014-6pm PST Nov 6, 2014

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Detailed Forecast



  • SynopsisLIGHT WIND AND SEAS ARE EXPECTED THROUGH LATE TONIGHT. WINDS WILL GRADUALLY INCREASE EARLY FRIDAY MORNING AS A STRONG COLD FRONT APPROACHES THE NORTHERN WATERS. WINDS WILL BRIEFLY INCREASE AHEAD AND JUST BEHIND THE FRONTAL PASSAGE AS RAIN MOVES FROM NORTH TO SOUTH THROUGH THE WATERS ON FRIDAY ALONG WITH A SLIGHT CHANCE OF THUNDERSTORMS. BEHIND THE FRONT LIGHTER NW WINDS ARE FORECAST FRIDAY EVENING. ON SATURDAY STRONGER NW WINDS AND BUILDING SEAS TO AROUND 10 FEET WILL DEVELOP CREATING SOME HAZARDOUS SEAS FOR THE START OF CRAB SEASON.
  • Today Variable winds less than 5 kt becoming W 7 to 12 kt in the afternoon. Showers, with thunderstorms also possible after 11am.
  • Tonight Variable winds less than 5 kt becoming W 5 to 9 kt after midnight. Showers likely and possibly a thunderstorm. Some of the storms could produce small hail.
  • Saturday W wind 6 to 12 kt. A chance of showers, mainly before 11am.
  • Saturday Night W wind 5 to 12 kt becoming NNW in the evening. Patchy fog after 11pm.
  • Sunday Variable winds 5 kt or less. Patchy fog before 8am.
  • Sunday Night NW wind around 6 kt. Mostly clear.
  • Monday Variable winds 5 kt or less. Mostly sunny.
  • Monday Night Variable winds 5 kt or less. Partly cloudy.
  • Tuesday Variable winds 5 kt or less. Mostly sunny.
*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.