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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 07 November 2025

Tonight and Saturday.

Wind west 10 knots veering to northwest 10 near midnight then to north 10 early Saturday morning. Wind becoming light near noon Saturday then becoming northeast 10 Saturday evening.

Waves

Issued 06:30 PM EST 07 November 2025
Tonight and Saturday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EST 07 November 2025
Sunday Wind light becoming northeast 15 knots in the morning.
Monday Wind north 20 knots.
Tuesday Wind west 15 knots backing to southwest 20.

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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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 6:30 PM EST 7 November 2025 Tonight and Saturday At 6:30 p.m. EST tonight low 991 mb located northeast of Lake
Nipissing.
By 6:30 p.m. EST Saturday departing low 1002 mb located over the
Gulf of St. Lawrence.

At 6:30 p.m. EST tonight ridge located on a line north-south over
northern Saskatchewan.
By 6:30 p.m. EST Saturday ridge located on a line east-west over
Lake Nipigon.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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