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Cornwall to Montréal

Forecast

Marine Forecast

Issued 03:00 AM EDT 21 April 2021

Today Tonight and Thursday.

Wind light increasing to northwest 15 knots after midnight and to west 15 to 25 Thursday morning.

Snow today. Visibility as low as 1 mile in snow.

High today plus 3. Low tonight minus 2. High Thursday plus 4.

Extended Forecast

Issued 06:00 PM 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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Weather Conditions

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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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Ice Conditions

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Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 21 April 2021 Today Tonight and Thursday At 3:00 a.m. EDT today trough located on a line north-south over
Sept-Îles.
By 8:00 a.m. EDT today departing trough located on a line
northwest-southeast over Anticosti Island.

At 3:00 a.m. EDT today low 1009 mb located southeast of the
Great Lakes.
By 8:00 a.m. EDT Thursday intensifying low 988 mb located over
New Brunswick.

Great Lakes - Lake Erie and Lake Ontario Area

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