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Cornwall to Montréal

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Marine Forecast

Issued 03:00 AM EDT 21 June 2021

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind light increasing to southwest 15 to 25 knots this morning with gusts to 50 near thunderstorms today. Wind becoming northwest 15 overnight then diminishing to light Tuesday afternoon.

Scattered showers today and this evening with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Extended Forecast

Issued 06:00 PM EDT 20 June 2021
Tuesday Wind west 10 to 15 knots becoming light in the morning.
Wednesday Wind westerly 10 to 15 knots.
Thursday Wind light becoming south 15 knots.

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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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Warnings

Warnings (In effect)

Strong wind warning in effect

Cornwall to Montréal

Issued 03:00 AM EDT 21 June 2021

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 21 June 2021 Today Tonight and Tuesday At 3:00 a.m. EDT today ridge located on a line north-south over
Anticosti Island.
By 8:00 p.m. EDT tonight departing ridge located on a line
north-south over the Strait of Belle Isle.

At 3:00 a.m. EDT today trough located on a line northeast-southwest
over Lake Michigan.
By 8:00 p.m. EDT Tuesday trough located on a line
northeast-southwest over Anticosti Island.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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