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Lake St. Clair

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EDT 16 October 2026

Tonight and Saturday.

Strong wind warning in effect.

Wind north 20 knots increasing to north 30 this evening then diminishing to north 20 late overnight. Wind diminishing to northwest 15 near noon Saturday and to northwest 10 Saturday afternoon. Wind backing to west 10 Saturday evening.

Scattered showers ending overnight.

Waves

Issued 06:30 PM EDT 16 October 2026
Tonight and Saturday. Waves 0.5 metres building to 1 this evening then subsiding to 0.5 or less early Saturday morning.

Extended Forecast

Issued 06:30 PM EDT 16 October 2026
Sunday Wind southwest 15 knots.
Monday Wind light.
Tuesday Wind light.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas Harrow AAFC Hamilton Munro Int'l Airport CFB Trenton Erieau Toronto City Centre Airport Point Pelee Peterborough Municipal Airport Burlington Lift Bridge Point Petre Cobourg Oshawa Executive Airport South Lake Huron - 45149 Port Colborne Brockville Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Ajax - 45159 North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 Windsor Airport Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Welland-Pelham Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Sarnia Chris Hadfield Airport Vineland Station Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Tobermory
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Ice Conditions

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

Ice Forecasts

Issued 12:00 PM EDT 17 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Lake St. Clair

Issued 6:30 PM EDT 16 October 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 6:30 PM EDT 16 October 2026 Tonight and Saturday At 6:30 p.m. EDT tonight departing low 996 mb located over southern
Quebec.

At 6:30 p.m. EDT tonight ridge located on a line northeast-southwest
over North Dakota.
By 6:30 p.m. EDT Saturday ridge located on a line
northeast-southwest over southwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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