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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EST 13 November 2025

Tonight and Friday.

Wind light tonight and Friday.

Showers or flurries ending this evening. Fog patches forming this evening and dissipating Friday morning. Visibility as low as 1 mile in precipitation and 1 mile or less in fog patches.

Temperatures near plus 1.

Extended Forecast

Issued 06:00 PM EST 13 November 2025
Saturday Wind light becoming northeast 10 to 15 knots late in the day.
Sunday Wind northeast 15 knots increasing to west 15 to 25.
Monday Wind west 15 to 25 knots.

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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

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EST 13 November 2025 Tonight and Friday At 3:00 p.m. EST today low 991 mb located south of Newfoundland.
By 7:00 p.m. EST Friday low 977 mb located over Newfoundland.

At 3:00 p.m. EST today ridge located from Lake Huron to Labrador.
By 7:00 p.m. EST Friday ridge located from Lake Ontario to
Ungava Bay.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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