Lake St. Clair
Forecast
Marine Forecast
Issued 03:00 AM EDT 20 March 2023
Today Tonight and Tuesday.
Wind southwest 20 knots diminishing to southwest 15 early this evening and to southwest 10 overnight. Wind backing to south 10 near noon Tuesday.
Scattered showers overnight.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EDT 20 March 2023
Today Tonight and Tuesday.
Waves 0.5 to 1 metre subsiding to 0.5 or less this
evening.
Extended Forecast
Issued 03:00 AM EDT 20 March 2023
Wednesday
Wind light becoming south 15 knots in the
afternoon.
Thursday
Wind southwest 20 knots diminishing to north
15 late in the day.
Friday
Wind light.
Ice Forecast*
Issued 12:00 PM EDT 19 March 2023 Today Tonight and Monday Open water except 2 tenths new lake ice in the eastern section.
*Ice Forecast and Warnings also apply to U.S. waters
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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 19 March 2023 Today Tonight and MondayIce Coverage
Open water except 2 tenths new lake ice in the eastern section.
Warnings
No watches or warnings in effect.
Synopsis
Technical Marine Synopsis
Issued 3:00 AM EDT 20 March 2023 Today Tonight and Tuesday At 3:00 a.m. EDT today cold front located on a line east-west overWhitefish Bay.
By 3:00 a.m. EDT Tuesday weakening trough located on a line
northeast-southwest over Lake Simcoe.
At 3:00 a.m. EDT today high 1030 mb located over Tennessee.
By 3:00 a.m. EDT Tuesday high 1031 mb located over West Virginia.
At 3:00 a.m. EDT today ridge located on a line north-south over
western Manitoba.
By 3:00 a.m. EDT Tuesday ridge located on a line northwest-southeast
over northern Ontario.
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