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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EST 10 November 2026

Tonight and Wednesday.

Wind southwest 15 to 25 knots becoming west 15 this evening then diminishing to light early Wednesday morning.

Periods of rain ending this evening.

Extended Forecast

Issued 06:00 PM EST 10 November 2026
Thursday Wind northeast 10 to 15 knots.
Friday Wind northeast 15 to 20 knots.
Saturday Wind northwest 10 to 20 knots.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas St. Catharines / Niagara District Airport Burlington Lift Bridge Point Pelee Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport Ajax - 45159 Erieau Lagoon City Collingwood Kingston Airport Grenadier Island Brockville Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Port Colborne North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 South Lake Huron - 45149 Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Windsor Airport Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Goderich Sarnia Chris Hadfield Airport Tobermory Long Point Harrow AAFC Port Weller Southeast Shoal Vineland Station Welland-Pelham
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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 10 November 2026 Tonight and Wednesday At 3:00 p.m. EST today low 1005 mb located north of Montréal.
By 7:00 p.m. EST tonight weakening low 1005 mb located east of
Montréal.

At 7:00 p.m. EST Wednesday quasi-stationary ridge located on a
line northwest-southeast over southern Quebec.

At 3:00 p.m. EST today low 994 mb located south of Newfoundland.
By 7:00 p.m. EST Wednesday low 983 mb located north of Newfoundland.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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