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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 02 April 2025

Tonight and Thursday.

Gale warning in effect.

Wind east 15 knots increasing to southeast 15 to 25 after midnight then veering to southwest 15 to 25 early Thursday morning. Wind increasing to southwest 25 to 35 Thursday afternoon then diminishing to west 15 to 25 Thursday evening.

Flurries beginning this evening changing to showers near midnight.

Low tonight zero. High Thursday plus 15.

Extended Forecast

Issued 06:00 AM EDT 02 April 2025
Friday Wind west 15 knots.
Saturday Wind light becoming southeast 10 to 15 knots.
Sunday Wind light becoming westerly 10 to 15 knots late in the day.

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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 02 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 2 April 2025 Tonight and Thursday At 3:00 p.m. EDT today high 1034 mb located over Saguenay River.
By 1:00 p.m. EDT Thursday departing high 1030 mb located over
Newfoundland.

At 3:00 p.m. EDT today low 990 mb located over the Midwestern
states.
By 8:00 p.m. EDT Thursday low 997 mb located northwest of Lake
Saint-Jean.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

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