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 bring below-normal temperatures across much of the eastern and northern U.S. on Wednesday and allow for snow, heavy at times, to develop 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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Last Update: 940 AM CDT WED APR 16 2014

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Winthrop Harbor to Wilmette Harbor IL

Marine Zone Forecast

WAVES ARE PROVIDED AS A RANGE OF SIGNIFICANT WAVE HEIGHTS...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG WITH THE AVERAGE HEIGHT OF THE HIGHEST 10 PERCENT OF THE WAVES WHICH WILL OCCASIONALLY BE ENCOUNTERED.

  • Rest Of Today South winds 15 to 25 kt increasing 20 to 25 kt by early afternoon then becoming southeast. Partly sunny. Waves 3 to 6 ft occasionally to 8 ft.
  • Tonight Southeast winds 20 to 25 kt becoming south overnight. Mostly cloudy. Waves 4 to 6 ft occasionally to 8 ft.
  • Thursday Southwest winds 10 to 20 kt diminishing to around 10 kt and becoming west in the afternoon. Partly sunny. Waves subsiding to 1 to 3 ft.
  • Thursday Night Northwest winds 5 to 10 kt becoming north 10 to 15 kt after midnight. Chance of rain. Waves 1 to 2 ft.



Additional Forecasts and Information

Zone Area Forecast for Winthrop Harbor to Wilmette Harbor IL