National Weather Service United States Department of Commerce

Heavy snow forecast for parts of Upper Midwest and western Great Lakes

A cold air mass behind a cold front will continue to bring below-normal temperatures across much of the eastern and northern U.S. through Thursday and allow for snow, heavy at times, to fall across parts of the Upper Midwest and western Great Lakes, mainly from central Minnesota to northern Michigan. Winter Storm Warnings and Winter Weather Advisories are in effect across the region.
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Hazardous Weather Conditions

8NM WNW San Francisco CA

Marine Point Forecast [NOTICE]

Overnight

Mostly Clear

W 7kt
5ft

Small Craft Advisory
Small Craft Advisory

Thursday

Sunny

Winds IncreasingWNW 22kt
7ft

Small Craft Advisory
Small Craft Advisory

Thursday
Night

Increasing Clouds

WNW 22kt
8ft

Small Craft Advisory
Small Craft Advisory

Friday

Decreasing Clouds

W 16kt
6-7ft

Small Craft Advisory
Small Craft Advisory

Friday
Night

Patchy Fog

W 18kt
6-7ft

Saturday

Patchy Fog

W 10kt
6ft

Saturday
Night

Patchy Fog

W 13kt
5ft

Sunday

Patchy Fog

W 8kt
6ft

Sunday
Night

Patchy Fog

W 9kt
11ft

Associated Zone Forecast which includes this point

Last Update: 2:27 am PDT Apr 17, 2014
Forecast Valid: 3am PDT Apr 17, 2014-6pm PDT Apr 23, 2014

View Nearby Observations

Detailed Forecast

  • Overnight W wind around 7 kt. Mostly clear. Mixed swell...WNW 5 ft at 10 seconds and WSW 2 ft at 14 seconds. Wind waves around 1 ft.
  • Thursday WNW wind 11 to 16 kt increasing to 17 to 22 kt in the afternoon. Sunny. Mixed swell...NW 8 ft at 9 seconds and SW 1 ft at 14 seconds becoming W. Wind waves 1 ft building to 5 ft.
  • Thursday Night WNW wind 14 to 22 kt, with gusts as high as 28 kt. Increasing clouds. NW swell 9 ft at 9 seconds. Wind waves 5 ft subsiding to 2 ft.
  • Friday W wind 10 to 16 kt. Mostly cloudy, then gradually becoming sunny. WNW swell 7 to 8 ft becoming W. Wind waves 1 to 2 ft.
  • Friday Night W wind 10 to 18 kt. Patchy fog after 11pm. W swell 7 ft. Wind waves 1 to 2 ft.
  • Saturday W wind 8 to 10 kt. Patchy fog before 11am. WNW swell 6 to 7 ft. Wind waves around 1 ft.
  • Saturday Night W wind 9 to 13 kt. Patchy fog after 11pm. Mixed swell...WNW 6 ft and SW 2 ft. Wind waves around 1 ft.
  • Sunday W wind 6 to 8 kt. Patchy fog before 11am. Mixed swell...W 6 ft and SW 2 ft. Wind waves around 1 ft.
  • Sunday Night W wind 5 to 9 kt. Patchy fog after 11pm. Mixed swell...WNW 8 ft and SW 2 ft. Wind waves around 1 ft.



*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.