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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 07 February 2026

Today Tonight and Sunday.

Wind north 20 knots backing to northwest 15 early this morning then diminishing to light early this evening. Wind light Sunday.

Waves

Issued 03:00 AM EST 07 February 2026
Today Tonight and Sunday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EST 07 February 2026
Monday Wind light.
Tuesday Wind south 15 knots diminishing to light.
Wednesday Wind light.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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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 EST 7 February 2026 Today Tonight and Sunday At 3:00 a.m. EST today departing trough located on a line
north-south over central Ontario.

At 3:00 a.m. EST today ridge located on a line north-south over
northwestern Ontario.
By 3:00 a.m. EST Sunday ridge located on a line north-south over
northern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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