Lake St. Clair
Forecast
Marine Forecast
Issued 03:00 AM EDT 20 June 2025
Today Tonight and Saturday.
Wind light becoming south 10 knots overnight then increasing to south 15 Saturday morning. Wind veering to southwest 15 Saturday evening.
Scattered showers this afternoon tonight and Saturday morning with a risk of thunderstorms.
Waves
Issued 03:00 AM EDT 20 June 2025
Today Tonight and Saturday.
Waves 0.5 metres or less building to 0.5 to 1 near noon
Saturday.
Extended Forecast
Issued 03:00 AM EDT 20 June 2025
Sunday
Wind southwest 15 knots.
Monday
Wind southwest 15 knots.
Tuesday
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 3:00 AM EDT 20 June 2025 Today Tonight and Saturday At 3:00 a.m. EDT today departing low 997 mb located near Montréal.At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over northeastern Ontario.
By 3:00 a.m. EDT Saturday weakening ridge located on a line
north-south over western Quebec.
By 3:00 a.m. EDT Saturday approaching low 995 mb located over
western Minnesota.
Great Lakes - Lake Erie and Lake Ontario Area
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