National Weather Service United States Department of Commerce

Severe weather expected for Upper Midwest on Wednesday

A potent storm system will bring a chance of severe thunderstorms to parts of the Upper Midwest on Wednesday and Wednesday night. Very large hail, damaging wind gusts, tornadoes and heavy rain are possible with these storms.
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16NM SSE San Francisco CA

Marine Point Forecast [NOTICE]

Tonight

Patchy Fog

SW 9kt
< 1ft

Wednesday

Patchy Fog

Light Wind
< 1ft

Wednesday
Night

Increasing Clouds

SW 6ktWinds Decreasing
< 1ft

Thursday

Becoming Sunny

Light Wind
< 1ft

Thursday
Night

Partly Cloudy

SW 7ktWinds Decreasing
< 1ft

Friday

Mostly Sunny

Light Wind
< 1ft

Friday
Night

Mostly Cloudy

WSW 6kt
< 1ft

Saturday

Mostly Sunny

Light Wind
< 1ft

Saturday
Night

Partly Cloudy

WSW 9kt
< 1ft

Associated Zone Forecast which includes this point

Last Update: 2:05 pm PDT Sep 2, 2014
Forecast Valid: 8pm PDT Sep 2, 2014-6pm PDT Sep 9, 2014

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Detailed Forecast



  • SynopsisNORTHWEST WINDS ARE DIMINISHING OVER THE COASTAL WATERS TODAY AS A THERM THROUGH DEVELOPS NEAR THE COAST.
  • Tonight SW wind 6 to 9 kt. Patchy fog after 11pm. . Wind waves 1 ft or less.
  • Wednesday Variable winds 5 kt or less. Patchy fog before 11am. . Wind waves 1 ft or less.
  • Wednesday Night SW wind around 6 kt becoming variable and less than 5 kt in the evening. Increasing clouds. . Wind waves 1 ft or less.
  • Thursday Variable winds 5 kt or less. Mostly cloudy through mid morning, then gradual clearing. . Wind waves 1 ft or less.
  • Thursday Night SW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Partly cloudy. . Wind waves 1 ft or less.
  • Friday Variable winds 5 kt or less. Mostly sunny. . Wind waves 1 ft or less.
  • Friday Night WSW wind around 6 kt. Mostly cloudy. . Wind waves 1 ft or less.
  • Saturday Variable winds 5 kt or less. Mostly sunny. . Wind waves 1 ft or less.
  • Saturday Night WSW wind 5 to 9 kt. Partly cloudy. . Wind waves 1 ft or less.
*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.