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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 15 June 2025

Tonight and Monday.

Wind light tonight and Monday.

Extended Forecast

Issued 06:00 PM EDT 15 June 2025
Tuesday Wind light becoming southwest 15 knots in the afternoon.
Wednesday Wind southwest 10 to 15 knots.
Thursday Wind southwest 15 knots increasing to west 15 to 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

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 15 June 2025 Tonight and Monday At 3:00 p.m. EDT today quasi-stationary ridge located on a line
east-west over southern Quebec.

At 3:00 p.m. EDT today trough located on a line northeast-southwest
over northern Labrador.
By midnight EDT tonight departing trough located on a line
northeast-southwest over the Strait of Belle Isle.

At 6:00 a.m. EDT Monday trough located on a line northeast-southwest
over northern Quebec.
By 8:00 p.m. EDT Monday trough located on a line northeast-southwest
over southern Labrador.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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