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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 16 March 2026

Tonight and Tuesday.

Wind west 30 knots diminishing to west 20 near midnight then veering to northwest 15 Tuesday morning. Wind backing to west 15 Tuesday evening.

Scattered flurries. Visibility as low as 1 mile in flurries.

Waves

Issued 06:30 PM EDT 16 March 2026
Tonight and Tuesday. Waves 1 metre subsiding to 0.5 or less near noon Tuesday.

Extended Forecast

Issued 06:30 PM EDT 16 March 2026
Wednesday Wind west 15 knots diminishing to light in the morning then increasing to south 20 in the afternoon.
Thursday Wind southwest 15 knots diminishing to light.
Friday Wind northwest 15 knots diminishing to light late in the day.

Ice Forecast*

Issued 12:00 PM EDT 16 March 2026 Today Tonight and Tuesday Open water.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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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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Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 16 March 2026 Today Tonight and Tuesday

Ice Coverage

Open water.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 16 March 2026 Tonight and Tuesday At 6:30 p.m. EDT tonight low 987 mb located over eastern Ontario.
By 6:30 p.m. EDT Tuesday departing low 953 mb located over northern
Quebec.

By 6:30 p.m. EDT Tuesday ridge located on a line north-south over
northern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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