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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EST 15 November 2025

Tonight and Sunday.

Wind light increasing to northeast 10 to 15 knots early this evening and to westerly 15 to 20 early Sunday morning.

Rain or freezing rain beginning this evening changing to periods of snow Sunday morning. Visibility 1 mile or less in precipitation.

Temperatures near plus 1.

Extended Forecast

Issued 06:00 PM EST 15 November 2025
Monday Wind west 15 to 25 knots.
Tuesday Wind southwest 15 to 25 knots.
Wednesday Wind southwest 10 to 15 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 15 November 2025 Tonight and Sunday At 3:00 p.m. EST today low 987 mb located over the Quebec Lower
North Shore.
By 7:00 a.m. EST Sunday dissipating low 989 mb located over
central Quebec.

At 3:00 p.m. EST today low 991 mb located over Lake Huron.
By 7:00 p.m. EST Sunday low 979 mb located over Prince Edward
Island.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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