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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 10:03 AM EDT 29 July 2021

Today Tonight and Friday.

Strong wind warning in effect.

Wind southerly 10 to 15 knots diminishing to light early this evening then increasing to northwest 10 to 15 near midnight with gusts to 30 near thunderstorms. Wind becoming northwesterly 15 to 25 early Friday morning.

Showers today tonight and Friday morning. Risk of thunderstorms overnight.

Extended Forecast

Issued 06:00 AM EDT 29 July 2021
Saturday Wind west 15 to 20 knots.
Sunday Wind light.
Monday Wind light becoming southwest 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 10:03 AM EDT 29 July 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 29 July 2021 Today Tonight and Friday At 3:00 a.m. EDT today ridge located on a line north-south over
Québec city.
By 8:00 p.m. EDT tonight departing ridge located on a line
north-south over Newfoundland.

At 3:00 a.m. EDT today trough located on a line northeast-southwest
over Lake Superior.
By 8:00 p.m. EDT Friday trough located on a line northwest-southeast
over Sept-Îles.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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