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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18NM N San Francisco CA

Marine Point Forecast [NOTICE]

Tonight

Patchy Fog

Winds IncreasingS 9kt

Wednesday

Patchy Fog

S 12kt

Wednesday
Night

Increasing Clouds

S 12ktWinds Decreasing

Thursday

Becoming Sunny

Winds IncreasingS 10kt

Thursday
Night

Partly Cloudy

S 12ktWinds Decreasing

Friday

Mostly Sunny

Winds IncreasingSSE 6kt

Friday
Night

Partly Cloudy

WSW 6kt

Saturday

Mostly Sunny

Light Wind

Saturday
Night

Partly Cloudy

WSW 9kt

Associated Zone Forecast which includes this point

Last Update: 2:05 pm PDT Sep 2, 2014
Forecast Valid: 10pm PDT Sep 2, 2014-6pm PDT Sep 9, 2014

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Detailed Forecast



  • SynopsisNORTHWEST WINDS WILL REMAIN GUSTY OVER THE NORTHERN OUTER WATERS TONIGHT AND WEDNESDAY. ELSWHERE NORTHWEST WINDS WILL BE AT LIGHTER SPEEDS AS A TROUGH DEVELOPS NEAR THE CALIFORNIA COAST.
  • Tonight Variable winds less than 5 kt becoming S 5 to 9 kt after midnight. Patchy fog after 11pm.
  • Wednesday S wind 6 to 12 kt. Patchy fog before 11am.
  • Wednesday Night S wind 7 to 12 kt becoming variable and less than 5 kt. Increasing clouds.
  • Thursday Variable winds less than 5 kt becoming S 5 to 10 kt in the afternoon. Cloudy through mid morning, then gradual clearing.
  • Thursday Night S wind 7 to 12 kt becoming variable and less than 5 kt in the evening. Partly cloudy.
  • Friday Variable winds less than 5 kt becoming SSE around 6 kt in the afternoon. Mostly sunny.
  • Friday Night WSW wind around 6 kt. Partly cloudy.
  • Saturday Variable winds 5 kt or less. Mostly sunny.
  • Saturday Night WSW wind 5 to 9 kt. Partly cloudy.
*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.