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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 06 March 2026

Today Tonight and Saturday.

Wind southeast 10 knots increasing to southeast 15 near noon then veering to south 20 early this evening. Wind veering to southwest 25 near midnight then increasing to southwest 30 Saturday morning. Wind diminishing to southwest 20 Saturday afternoon then veering to west 20 Saturday evening.

Periods of drizzle beginning near noon changing to periods of rain and fog patches this evening with a risk of thunderstorms.

Waves

Issued 10:30 AM EST 06 March 2026
Today Tonight and Saturday. Over open water waves 0.5 metres or less building to 0.5 to 1 this evening and to 1 to 1.5 early Saturday morning. Waves subsiding to 0.5 to 1 Saturday evening.

Extended Forecast

Issued 03:00 AM EST 06 March 2026
Sunday Wind northwest 25 knots backing to southwest 25 in the morning.
Monday Wind southwest 20 knots.
Tuesday Wind north 15 knots veering to northeast 20 late in the day.

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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

Lake Huron

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.

Ice Forecasts

Lake Michigan

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 10:30 AM EST 6 March 2026 Today Tonight and Saturday At 10:30 a.m. EST today departing ridge located on a line
northwest-southeast over central Quebec.

At 10:30 a.m. EST today trough located from Kansas to Lake of
the Woods.
By 10:30 a.m. EST Saturday trough located on a line
northeast-southwest over northeastern Ontario.

By 10:30 a.m. EST Saturday ridge located on a line north-south
over northwestern Ontario.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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