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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 14 October 2026

Today Tonight and Thursday.

Wind north 10 knots increasing to northeast 15 this afternoon then diminishing to east 10 Thursday morning.

Showers Thursday evening with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 14 October 2026
Today Tonight and Thursday. Waves less than 0.5 metres building to 0.5 early this evening then subsiding to less than 0.5 near noon Thursday.

Extended Forecast

Issued 03:00 AM EDT 14 October 2026
Friday Wind light increasing to north 20 knots in the morning and to north 30 late in the day.
Saturday Wind north 30 knots diminishing to north 20.
Sunday Wind southwest 15 knots.

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Map of Great Lakes - Lake Huron marine weather areas Erieau CFB Trenton Muskoka Airport Parry Sound Harbour Toronto City Centre Airport Lake Simcoe Regional Airport Wiarton Airport Point Petre Lagoon City Western Islands Cobourg Port Colborne Windsor Airport Point Pelee Welland-Pelham Vineland Station Burlington Lift Bridge Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Harrow AAFC Hamilton Munro Int'l Airport Tobermory Sarnia Chris Hadfield Airport Oshawa Executive Airport Collingwood Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Peterborough Municipal Airport Brockville Grenadier Island Kingston Airport
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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 14 October 2026 Today Tonight and Thursday At 10:30 a.m. EDT today departing low 1006 mb located south
of Maine.

At 10:30 a.m. EDT today high 1024 mb located over North Dakota.
By 10:30 a.m. EDT Thursday high 1028 mb located over northeastern
Ontario.

By 10:30 a.m. EDT Thursday low 1014 mb located over southern
Manitoba.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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