National Weather Service United States Department of Commerce

Heavy lake-effect snow continues across lower Great Lakes

Another round of heavy lake-effect snow is forecast for the Great Lakes through mid-day Friday. An additional 30 inches or more could fall in some locations, on top of the impressive amounts that have fallen already. This will result in very difficult or nearly impossible travel at times in the heaviest snow bands. The snow should taper off during the morning on Friday.
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Last Update: 938 AM CST FRI NOV 21 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 Southwest winds 10 to 15 kt becoming south 15 to 25 kt. Sunny. Waves 2 to 4 ft.
  • Tonight South winds 15 to 25 kt increasing to 30 kt overnight. Slight chance of freezing rain or sleet in the evening...then showers and freezing rain likely after midnight. Waves 3 to 5 ft occasionally to 7 ft.
  • Saturday Southwest winds 20 to 25 kt. Intermittent rain and drizzle. Waves 2 to 4 ft.
  • Saturday Night South winds 15 to 25 kt. Patchy fog. Intermittent rain and drizzle. Waves 2 to 4 ft.



Additional Forecasts and Information

Zone Area Forecast for Winthrop Harbor to Wilmette Harbor IL
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