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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 09 February 2026

Tonight and Tuesday.

Wind southeast 10 knots veering to south 10 this evening then increasing to southwest 15 Tuesday morning. Wind veering to west 15 Tuesday afternoon.

Waves

Issued 06:30 PM EST 09 February 2026
Tonight and Tuesday. Mainly ice covered.

Extended Forecast

Issued 06:30 PM EST 09 February 2026
Wednesday Wind west 15 knots.
Thursday Wind northwest 15 knots diminishing to light.
Friday Wind light becoming west 15 knots.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
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land station Land Station
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 9 February 2026 Tonight and Tuesday At 6:30 p.m. EST tonight ridge located on a line north-south over
eastern Ontario.
By 6:30 p.m. EST Tuesday ridge located on a line north-south over
eastern Quebec.

At 6:30 p.m. EST tonight low 1005 mb located over northwestern
Ontario.
By 6:30 p.m. EST Tuesday low 1003 mb located over northeastern
Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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