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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EST 01 December 2023

Tonight and Saturday.

Wind light becoming northeast 10 to 15 knots near midnight. Wind northeast 10 to 15 Saturday.

Rain beginning this evening changing to periods of snow Saturday morning and ending near noon Saturday. Visibility 1 mile or less in precipitation.

Temperatures plus 7 falling to zero Saturday morning.

Extended Forecast

Issued 06:00 PM EST 01 December 2023
Sunday Wind northeast 15 to 25 knots.
Monday Wind northeast 15 to 25 knots becoming southwest 15 to 20.
Tuesday Wind north 15 knots diminishing to light.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas N Huron - 45003 W Erie - 45005 S Huron - 45008 Lake Ontario - 45012 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 Great Duck Island Brockville Grenadier Island Kingston Airport Collingwood Lagoon City Muskoka Airport Parry Sound Harbour Lake Simcoe Regional Airport Wiarton Airport Western Islands Cove Island Goderich Sarnia Chris Hadfield Airport Tobermory Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Southeast Shoal Vineland Station Welland-Pelham Windsor Airport Port Colborne Erieau Point Pelee Burlington Lift Bridge Cobourg Hamilton Munro Int'l Airport Oshawa Executive Airport Point Petre Toronto City Centre Airport CFB Trenton Peterborough Municipal Airport
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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 PM EST 1 December 2023 Tonight and Saturday At 3:00 p.m. EST today trough located from Labrador to Lake Ontario.
By 4:00 a.m. EST Saturday dissipating trough located on a line
northwest-southeast over Labrador Sea.

At 3:00 p.m. EST today high 1017 mb located over the Great Lakes.
By 7:00 p.m. EST Saturday high 1027 mb located near Labrador.

At 3:00 p.m. EST today approaching low 1007 mb located south of
Lake Michigan.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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