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Cornwall to Montréal

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Forecast

Issued 03:00 PM EDT 10 March 2026

Forecasts have ended for the season.

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Map of Great Lakes - Lake Huron marine weather areas Wiarton Airport Western Islands Cove Island Goderich Lake Simcoe Regional Airport Vineland Station Parry Sound Harbour Sarnia Chris Hadfield Airport Tobermory Muskoka Airport Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Lagoon City Southeast Shoal Burlington Lift Bridge Welland-Pelham Windsor Airport Port Colborne Erieau Peterborough Municipal Airport CFB Trenton Toronto City Centre Airport Point Petre Oshawa Executive Airport Hamilton Munro Int'l Airport Point Pelee Cobourg Port Colborne - 45142 North Channel - 45154 Ajax - 45159 Lake Nipissing - 45152 Sault Ste. Marie Airport Killarney Lake Simcoe - 45151 Greater Sudbury Airport South Lake Huron - 45149 Lake St Clair - 45147 North Bay Airport South Georgian Bay - 45143 Gore Bay-Manitoulin Airport Grimsby - 45139 Georgian Bay - 45137 Great Duck Island Collingwood Kingston Airport Grenadier Island Brockville Prince Edward Point - 45135 Port Stanley - 45132
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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 10 March 2026 Tonight and Wednesday At 3:00 p.m. EDT today trough located on a line northeast-southwest
over the Quebec Lower North Shore.
By 2:00 a.m. EDT Wednesday dissipating trough located on a line
northeast-southwest over Newfoundland.

At 3:00 p.m. EDT today high 1033 mb located over James Bay.
By 8:00 p.m. EDT Wednesday high 1031 mb located over Labrador.

At 8:00 p.m. EDT tonight low 1004 mb located over the Midwestern
states.
By 8:00 p.m. EDT Wednesday low 991 mb located over Lake Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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