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Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 06:30 PM EST 17 November 2025

Tonight and Tuesday.

Wind northwest 15 knots diminishing to northwest 10 late overnight. Wind northwest 10 Tuesday.

Waves

Issued 06:30 PM EST 17 November 2025
Tonight and Tuesday. Waves 0.5 metres.

Extended Forecast

Issued 06:30 PM EST 17 November 2025
Wednesday Wind light.
Thursday Wind light becoming south 15 knots.
Friday Wind southwest 20 knots veering to northwest 25.

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

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

Ice Forecasts

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 6:30 PM EST 17 November 2025 Tonight and Tuesday At 6:30 p.m. EST tonight ridge located from Manitoba to Lake Huron
then to Kentucky.
By 6:30 p.m. EST Tuesday ridge located from Lake Nipigon to Lake
Ontario then to Virginia.

At 6:30 p.m. EST tonight low 1002 mb located over northeastern
Wyoming.
By 6:30 p.m. EST Tuesday low 1011 mb located over southern Illinois.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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