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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 19 January 2026

Today Tonight and Tuesday.

Gale warning in effect.

Wind west 30 knots increasing to west 35 near noon then diminishing to southwest 20 early this evening. Wind diminishing to southwest 15 late overnight then increasing to southwest 20 near noon Tuesday. Wind diminishing to southwest 15 Tuesday evening.

Scattered flurries.

Waves

Issued 10:30 AM EST 19 January 2026
Today Tonight and Tuesday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EST 19 January 2026
Wednesday Wind light increasing to southwest 20 knots in the afternoon.
Thursday Wind west 15 knots increasing to west 20.
Friday Wind northwest 20 knots.

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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

Warnings (In effect)

Gale warning in effect

Lake St. Clair

Issued 10:30 AM EST 19 January 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EST 19 January 2026 Today Tonight and Tuesday At 10:30 a.m. EST today low 1002 mb located north of Lake Nipissing.
By 10:30 a.m. EST Tuesday departing low 998 mb located over
Labrador.

At 10:30 a.m. EST today high 1037 mb located over Nebraska.
By 10:30 a.m. EST Tuesday high 1037 mb located over Kentucky.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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