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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 19 January 2026

Today Tonight and Tuesday.

Gale warning in effect.

Wind southwest 20 knots increasing to west 35 this morning then diminishing to west 25 early this evening. Wind backing to southwest 20 late this evening then diminishing to southwest 15 overnight. Wind increasing to southwest 20 near noon Tuesday then diminishing to southwest 10 Tuesday evening.

Scattered flurries.

Waves

Issued 03:00 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 03:00 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 3:00 AM EST 19 January 2026 Today Tonight and Tuesday At 3:00 a.m. EST today dissipating ridge located on a line
northeast-southwest over southeastern Quebec.

At 3:00 a.m. EST today low 1002 mb located over eastern Lake
Superior.
By 3:00 a.m. EST Tuesday low 1002 mb located over eastern Quebec.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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