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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 22 May 2025

Tonight and Friday.

Wind southeasterly 15 to 20 knots diminishing to southeasterly 10 to 15 this evening then backing to northeast 15 early Friday morning. Wind diminishing to light Friday evening.

Showers ending near midnight. Periods of rain Friday.

Extended Forecast

Issued 06:00 AM EDT 22 May 2025
Saturday Wind northeast 15 knots diminishing to light in the afternoon.
Sunday Wind light becoming northerly 10 to 15 knots.
Monday 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
Legend:
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 PM EDT 22 May 2025 Tonight and Friday At 3:00 p.m. EDT today ridge located on a line north-south over
Anticosti Island.
By 8:00 p.m. EDT Friday ridge located on a line northwest-southeast
over Labrador Coast.

At 3:00 p.m. EDT today low 1002 mb located near Lake Erie.
By 8:00 p.m. EDT Friday low 1004 mb located near the Bay of Fundy.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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