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Cornwall to Montréal

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Marine Forecast

Issued 08:37 AM EDT 20 April 2021

Today Tonight and Wednesday.

Wind southwest 15 to 25 knots diminishing to west 10 to 15 this evening then becoming light near midnight. Wind light Wednesday.

Showers this morning. Snow Wednesday afternoon and evening. Visibility 1 mile or less in snow.

Temperatures plus 6 falling to zero Wednesday evening.

Extended Forecast

Issued 06:00 AM EDT 20 April 2021
Thursday Wind west 20 knots.
Friday Wind west 20 knots.
Saturday Wind southwest 15 knots diminishing to light late in the day.

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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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Warnings

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Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 20 April 2021 Today Tonight and Wednesday At 3:00 a.m. EDT today ridge located on a line north-south over
the Gaspe Peninsula.
By 8:00 p.m. EDT tonight dissipating ridge located on a line
north-south over the Gulf of St. Lawrence.

At 3:00 a.m. EDT today trough located on a line north-south over
Cornwall.
By 8:00 a.m. EDT Wednesday trough located on a line
northwest-southeast over Anticosti Island.

At 11:00 a.m. EDT Wednesday approaching low 1004 mb located over
New England.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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