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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 13 October 2026

Today Tonight and Wednesday.

Wind southwest 15 knots diminishing to west 10 early this evening then becoming light late overnight. Wind becoming north 10 Wednesday morning then veering to northeast 10 Wednesday evening.

Scattered showers overnight and Wednesday morning with a risk of thunderstorms.

Waves

Issued 10:30 AM EDT 13 October 2026
Today Tonight and Wednesday. Waves 0.5 metres.

Extended Forecast

Issued 03:00 AM EDT 13 October 2026
Thursday Wind northeast 15 knots.
Friday Wind light increasing to northwest 30 knots late in the day.
Saturday Wind northwest 20 knots backing to southwest 15 late in the day.

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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 13 October 2026 Today Tonight and Wednesday At 10:30 a.m. EDT today departing ridge located on a line
northwest-southeast over New Brunswick.

At 10:30 a.m. EDT today low 1004 mb located over northern Lower
Michigan.
By 10:30 a.m. EDT Wednesday low 1006 mb located over southwestern
New Brunswick.

By 10:30 a.m. EDT Wednesday ridge from high located on a line
east-west over Wisconsin.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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