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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 11 December 2024

Today Tonight and Thursday.

Gale warning in effect.

Wind easterly 10 to 15 knots becoming light near noon then increasing to southwest 15 to 25 early this evening. Wind increasing to southwest 35 to 45 after midnight then diminishing to southwest 25 to 35 near noon Thursday.

Rain changing to flurries near midnight and ending overnight. Visibility as low as 1 mile in rain.

Temperatures plus 3 falling to minus 5 Thursday evening.

Extended Forecast

Issued 06:00 AM EST 11 December 2024
Friday Wind southwest 20 knots.
Saturday Wind light.
Sunday Wind east 10 to 15 knots.

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Map of Great Lakes - Lake Huron 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 09:25 AM EST 11 December 2024

'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 AM EST 11 December 2024 Today Tonight and Thursday At 3:00 a.m. EST today deepening low 1004 mb located over Lake
Ontario.
By 7:00 p.m. EST Thursday low 968 mb located over the Ungava
Peninsula.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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