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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 09 December 2024

Today Tonight and Tuesday.

Wind light increasing to northeast 10 to 15 knots early this morning and to northeast 15 to 25 this afternoon. Wind diminishing to northeast 10 to 15 overnight then veering to southeast 10 to 15 Tuesday morning. Wind backing to easterly 15 to 20 Tuesday evening.

Snow this afternoon and tonight. Showers Tuesday evening. Risk of freezing rain overnight and Tuesday morning. Visibility 1 mile or less in precipitation.

Temperatures minus 8 rising to plus 4 Tuesday evening.

Extended Forecast

Issued 06:00 AM EST 09 December 2024
Wednesday Wind northeast 15 knots.
Thursday Wind southwest 35 to 45 knots.
Friday Wind southwest 20 knots.

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Map of Great Lakes - Lake Huron 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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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 9 December 2024 Today Tonight and Tuesday At 3:00 a.m. EST today low 998 mb located over southwestern
Newfoundland.
By 7:00 p.m. EST tonight low 990 mb located off Labrador.

At 3:00 a.m. EST today ridge located on a line northwest-southeast
over Trois-Rivières.
By 7:00 p.m. EST tonight ridge located on a line northwest-southeast
over Newfoundland.

At 3:00 a.m. EST today warm front located from Lake Superior to
Lake Ontario.
By 7:00 p.m. EST tonight warm front located on a line east-west
over northern Montréal.

Great Lakes - Lake Huron Area

Another Region

Marine Weather for Canada

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