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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 22 May 2026

Today Tonight and Saturday.

Wind light becoming northeast 10 to 15 knots Saturday morning then veering to southeast 10 to 15 near noon Saturday.

Extended Forecast

Issued 06:00 PM EDT 21 May 2026
Saturday Wind light becoming southeast 15 knots in the afternoon.
Sunday Wind southeast 20 knots.
Monday Wind southeast 10 to 15 knots veering to southwest 10 to 15.

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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 AM EDT 22 May 2026 Today Tonight and Saturday At 3:00 a.m. EDT today ridge located from Hudson Bay to New England.
By 8:00 p.m. EDT Saturday ridge located from the Ungava Peninsula
to New Brunswick.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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