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Southern Lake Huron

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EST 11 February 2026

Today Tonight and Thursday.

Wind northwest 25 knots diminishing to northwest 15 to 20 early Thursday morning and to variable 10 Thursday afternoon.

Scattered flurries. Visibility 1 mile or less in flurries.

Waves

Issued 10:30 AM EST 11 February 2026
Today Tonight and Thursday. Over open water waves 2 to 3 metres subsiding to 1 to 1.5 Thursday morning and to 0.5 or less Thursday evening.

Extended Forecast

Issued 03:00 AM EST 11 February 2026
Friday Wind west 15 knots backing to southwest 20 in the afternoon.
Saturday Wind northwest 15 knots diminishing to light.
Sunday Wind southeast 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

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 11 February 2026 Today Tonight and Thursday At 10:30 a.m. EST today departing low 999 mb located south of
Nova Scotia.

At 10:30 a.m. EST today trough located on a line east-west over
northern Georgian Bay.
By 10:30 a.m. EST Thursday trough located on a line east-west over
southern Ontario.

At 10:30 a.m. EST today high 1027 mb located over northwestern
Ontario.
By 10:30 a.m. EST Thursday high 1029 mb located over Wisconsin.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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