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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 13 October 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind northeast 15 to 25 knots diminishing to northeast 10 to 15 early this evening then becoming light near midnight. Wind increasing to west 10 to 15 Wednesday morning and to west 15 to 25 near noon Wednesday. Wind becoming west 15 Wednesday evening.

Rain ending overnight. Visibility as low as 1 mile in rain.

Extended Forecast

Issued 06:00 PM EDT 13 October 2026
Thursday Wind northwest 10 to 20 knots becoming light in the morning.
Friday Wind northeast 15 knots increasing to northwest 15 to 25 late in the day.
Saturday Wind northwest 15 to 25 knots becoming west 15 late in the day.

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Map of Great Lakes - Lake Huron marine weather areas Erieau CFB Trenton Muskoka Airport Parry Sound Harbour Toronto City Centre Airport Lake Simcoe Regional Airport Wiarton Airport Point Petre Lagoon City Western Islands Cobourg Port Colborne Windsor Airport Point Pelee Welland-Pelham Vineland Station Burlington Lift Bridge Southeast Shoal St. Catharines / Niagara District Airport Goderich Port Weller Long Point Harrow AAFC Hamilton Munro Int'l Airport Tobermory Sarnia Chris Hadfield Airport Oshawa Executive Airport Collingwood Port Stanley - 45132 Prince Edward Point - 45135 Georgian Bay - 45137 Grimsby - 45139 Port Colborne - 45142 South Georgian Bay - 45143 Lake St Clair - 45147 South Lake Huron - 45149 Lake Simcoe - 45151 Lake Nipissing - 45152 North Channel - 45154 Ajax - 45159 Sault Ste. Marie Airport Killarney Greater Sudbury Airport North Bay Airport Gore Bay-Manitoulin Airport Peterborough Municipal Airport Brockville Grenadier Island Kingston Airport
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land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Cornwall to Montréal

Issued 3:00 PM EDT 13 October 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 13 October 2026 Tonight and Wednesday At 3:00 p.m. EDT today ridge located from Hudson Bay to the Gaspe
Peninsula.
By 8:00 a.m. EDT Wednesday departing ridge located on a line
northwest-southeast over Newfoundland.

At 3:00 p.m. EDT today low 1003 mb located over Lake Michigan.
By 8:00 p.m. EDT Wednesday low 1000 mb located over the Gulf of
St. Lawrence.

At 8:00 p.m. EDT Wednesday approaching high 1026 mb located over
northwestern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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