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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 18 January 2026

Tonight and Monday.

Gale warning in effect.

Wind southwest 15 knots increasing to southwest 20 late overnight and to west 35 Monday morning. Wind diminishing to west 20 Monday evening.

Flurries.

Waves

Issued 06:30 PM EST 18 January 2026
Tonight and Monday. Mainly ice covered.

Extended Forecast

Issued 06:30 PM EST 18 January 2026
Tuesday Wind southwest 15 knots increasing to southwest 20 in the afternoon then diminishing to light late in the day.
Wednesday Wind light increasing to southwest 20 knots.
Thursday Wind west 15 knots increasing to west 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

Warnings (In effect)

Gale warning in effect

Lake St. Clair

Issued 6:30 PM EST 18 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 6:30 PM EST 18 January 2026 Tonight and Monday At 6:30 p.m. EST tonight dissipating ridge located on a line
northeast-southwest over western Quebec.

At 6:30 p.m. EST tonight low 1006 mb located over western Lake
Superior.
By 6:30 p.m. EST Monday low 999 mb located over southwestern Quebec.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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