Lake St. Clair
Forecast
Marine Forecast
Issued 06:30 PM EDT 12 July 2025
Tonight and Sunday.
Wind southwest 15 knots diminishing to west 10 near midnight. Wind west 10 Sunday.
Scattered showers ending Sunday morning with a risk of thunderstorms.
Waves
Issued 06:30 PM EDT 12 July 2025
Tonight and Sunday.
Waves 0.5 to 1 metre subsiding to 0.5 or less late
overnight.
Extended Forecast
Issued 06:30 PM EDT 12 July 2025
Monday
Wind light.
Tuesday
Wind light.
Wednesday
Wind light.
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Weather Conditions
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Ice Conditions
*Ice Forecast and Warnings also apply to U.S. waters
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 6:30 PM EDT 12 July 2025 Tonight and Sunday At 6:30 p.m. EDT tonight trough located on a linenortheast-southwest over Georgian Bay.
By 6:30 p.m. EDT Sunday trough located on a line northeast-southwest
over the St. Lawrence River.
At 6:30 p.m. EDT tonight low 1002 mb located over northern Ontario.
By 6:30 p.m. EDT Sunday low 988 mb located over southern Hudson Bay.
At 6:30 p.m. EDT tonight ridge located on a line north-south over
eastern Nebraska.
By 6:30 p.m. EDT Sunday ridge located on a line north-south over
Indiana.
Great Lakes - Lake Huron Area
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