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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 03 April 2025

Tonight and Friday.

Gale warning in effect.

Wind southwest 15 to 25 knots increasing to southwest 25 to 35 late this afternoon then diminishing to west 15 to 25 this evening. Wind becoming west 15 late overnight then diminishing to light Friday evening.

Showers this afternoon.

Extended Forecast

Issued 06:00 AM EDT 03 April 2025
Saturday Wind northeast 15 knots increasing to southeast 20 to 30 in the afternoon.
Sunday Wind westerly 15 knots.
Monday Wind light.

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Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas 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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buoy Buoy
land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Gale warning in effect

Cornwall to Montréal

Issued 3:00 PM EDT 03 April 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 PM EDT 3 April 2025 Tonight and Friday At 3:00 p.m. EDT today low 994 mb located over western Quebec.
By 10:00 a.m. EDT Friday departing low 1006 mb located east of
Cape Breton Island.

At 8:00 p.m. EDT tonight high 1022 mb located over the Midwestern
states.
By 8:00 p.m. EDT Friday high 1029 mb located over Quebec.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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