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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 01 June 2025

Today Tonight and Monday.

Strong wind warning in effect.

Wind west 15 to 25 knots diminishing to light this evening then increasing to westerly 15 to 20 Monday morning. Wind diminishing to light Monday evening.

Extended Forecast

Issued 06:00 PM EDT 31 May 2025
Monday Wind southwest 15 knots diminishing to light late in the day.
Tuesday Wind light becoming southwest 10 to 15 knots late in the day.
Wednesday Wind southwest 15 knots.

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Map of Great Lakes - Lake Huron marine weather areas Cove Island Goderich Oshawa Executive Airport CFB Trenton Western Islands Wiarton Airport Point Petre Lake Simcoe Regional Airport Parry Sound Harbour Toronto City Centre Airport Muskoka Airport Lagoon City Brockville Hamilton Munro Int'l Airport Sarnia Chris Hadfield Airport Tobermory Cobourg Harrow AAFC Long Point Port Weller Burlington Lift Bridge St. Catharines / Niagara District Airport Southeast Shoal Point Pelee Vineland Station Welland-Pelham Erieau Windsor Airport Port Colborne Killarney South Georgian Bay - 45143 Grimsby - 45139 Georgian Bay - 45137 Prince Edward Point - 45135 Port Stanley - 45132 Lake St Clair - 45147 South Lake Huron - 45149 Sault Ste. Marie Airport Lake Simcoe - 45151 Collingwood Greater Sudbury Airport North Bay Airport Kingston Airport Peterborough Municipal Airport Grenadier Island Port Colborne - 45142 Great Duck Island Ajax - 45159 Gore Bay-Manitoulin Airport North Channel - 45154 Lake Nipissing - 45152
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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Cornwall to Montréal

Issued 03:00 AM EDT 01 June 2025

'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 1 June 2025 Today Tonight and Monday At 3:00 a.m. EDT today low 982 mb located near Tadoussac.
By 8:00 p.m. EDT Monday departing low 1005 mb located over Labrador.

At 3:00 a.m. EDT today ridge located from Hudson Bay to Lake
Superior.
By 8:00 p.m. EDT Monday ridge located from the Ungava Peninsula
to the East Coast of the U.S.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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