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Cornwall to Montréal

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Forecast

Issued 03:00 AM EDT 13 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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land station Land Station
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 AM EDT 13 March 2026 Today Tonight and Saturday At 3:00 a.m. EDT today low 996 mb located near Cape Breton Island.
By 8:00 p.m. EDT tonight departing low 967 mb located over
Labrador Sea.

At 3:00 a.m. EDT today ridge located on a line north-south over
western Quebec.
By 8:00 p.m. EDT Saturday ridge located on a line
northwest-southeast over Labrador.

At 3:00 a.m. EDT today low 988 mb located southwest of Lake
Superior.
By 8:00 p.m. EDT Saturday low 999 mb located over Nova Scotia.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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