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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 07 August 2022

Tonight and Monday.

Strong wind warning in effect.

Wind west 15 to 25 knots with gusts to 45 near thunderstorms. Wind diminishing to light early this evening with gusts to 45 near thunderstorms. Wind becoming northeast 15 near midnight. Wind northeast 15 Monday.

Showers or thunderstorms beginning this afternoon changing to rain near midnight. Visibility 1 mile or less in precipitation.

Extended Forecast

Issued 06:00 AM EDT 07 August 2022
Tuesday Wind northeast 15 to 20 knots diminishing to northeast 10 to 15 late in the day.
Wednesday Wind light.
Thursday Wind light becoming southwest 10 to 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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buoy Buoy
land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Cornwall to Montréal

Issued 3:00 PM EDT 07 August 2022

'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.

Watches (In effect)

Squall watch in effect

Cornwall to Montréal

Issued 2:57 PM EDT 07 August 2022 Conditions are favourable for the development of squalls with wind gusts up to 45 knots this afternoon and this evening.

Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 7 August 2022 Tonight and Monday At 3:00 p.m. EDT today trough located on a line east-west over
Québec city.
By 2:00 a.m. EDT Monday departing trough located on a line
northeast-southwest over Newfoundland.

At 3:00 p.m. EDT today ridge located on a line east-west over
northern Ontario.
By 8:00 p.m. EDT Monday ridge located on a line northwest-southeast
over the Gulf of St. Lawrence.

At 3:00 p.m. EDT today low located near Lake Huron.
By 8:00 p.m. EDT Monday low located near Cornwall.

Great Lakes - Lake Erie and Lake Ontario Area

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Marine Weather for Canada

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