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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 16 November 2025

Today Tonight and Monday.

Wind light increasing to westerly 15 to 25 knots this morning. Wind westerly 15 to 25 tonight and Monday.

Rain or periods of snow becoming periods of snow early this morning and ending Monday morning. Visibility as low as 1 mile in precipitation.

Temperatures near zero.

Extended Forecast

Issued 06:00 AM EST 16 November 2025
Tuesday Wind southwest 15 to 20 knots.
Wednesday Wind southwest 10 to 15 knots.
Thursday Wind light.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas Harrow AAFC Burlington Lift Bridge Oshawa Executive Airport Point Pelee Peterborough Municipal Airport Point Petre Hamilton Munro Int'l Airport Erieau Cobourg Toronto City Centre Airport Port Colborne CFB Trenton South Lake Huron - 45149 Windsor Airport Great Duck Island Gore Bay-Manitoulin Airport North Bay Airport Greater Sudbury Airport Killarney Sault Ste. Marie Airport Ajax - 45159 North Channel - 45154 Lake Nipissing - 45152 Lake Simcoe - 45151 Welland-Pelham Lake St Clair - 45147 South Georgian Bay - 45143 Port Colborne - 45142 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Vineland Station Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Cove Island Goderich Sarnia Chris Hadfield Airport Western Islands Tobermory Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal
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buoy Buoy
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 EST 16 November 2025 Today Tonight and Monday At 3:00 a.m. EST today dissipating low 989 mb located north of
Sept-Îles.

At 3:00 a.m. EST today low 983 mb located over southern Quebec.
By 7:00 p.m. EST Monday low 977 mb located near Natashquan.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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