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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 15 May 2026

Tonight and Saturday.

Wind south 10 knots increasing to southwest 15 early Saturday morning then diminishing to southwest 10 Saturday evening.

Scattered showers Saturday with a risk of thunderstorms.

Waves

Issued 06:30 PM EDT 15 May 2026
Tonight and Saturday. Waves 0.5 metres or less.

Extended Forecast

Issued 06:30 PM EDT 15 May 2026
Sunday Wind light.
Monday Wind southwest 15 knots increasing to southwest 20.
Tuesday Wind southwest 20 knots diminishing to light late in the day.

Ice Forecast*

Issued 12:00 PM EDT 15 May 2026 Today Tonight and Saturday Ice free.

*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 15 May 2026 Today Tonight and Saturday

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 15 May 2026 Tonight and Saturday At 6:30 p.m. EDT tonight departing ridge located on a line
northeast-southwest over the St. Lawrence River.

At 6:30 p.m. EDT tonight low 988 mb located over northern Ontario.
By 6:30 p.m. EDT Saturday low 988 mb located over northern Quebec.

By 6:30 p.m. EDT Saturday ridge located from Manitoba to Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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