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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 23 April 2025

Today Tonight and Thursday.

Wind light becoming west 15 knots near noon then diminishing to light early this evening. Wind light Thursday.

High today plus 10. Low tonight minus 1. High Thursday plus 14.

Extended Forecast

Issued 06:00 AM EDT 23 April 2025
Friday Wind light becoming northeast 15 knots in the afternoon.
Saturday Wind southerly 15 to 25 knots becoming northwest 15 to 25.
Sunday Wind northwest 15 knots.

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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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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 EDT 23 April 2025 Today Tonight and Thursday At 3:00 a.m. EDT today low 1013 mb located near Pointe-des-Monts.
By 6:00 a.m. EDT Thursday weakening low 1015 mb located south
of Newfoundland.

At 6:00 a.m. EDT Thursday trough located over western Quebec.
By 8:00 p.m. EDT Thursday trough located over Québec city.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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