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Cornwall to Montréal

Forecast

Marine Forecast

Issued 09:41 AM EDT 27 May 2024

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind southeast 20 to 30 knots diminishing to south 15 this evening then increasing to southwest 15 to 25 late overnight. Wind becoming southwest 15 Tuesday evening.

Rain with a risk of thunderstorms today and early this evening changing to showers Tuesday morning. Risk of thunderstorms late Tuesday afternoon. Visibility as low as 1 mile in rain.

Extended Forecast

Issued 06:00 AM EDT 27 May 2024
Wednesday Wind light.
Thursday Wind west 15 knots.
Friday Wind west 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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Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

Cornwall to Montréal

Issued 09:41 AM EDT 27 May 2024

'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 10:11 AM EDT 27 May 2024 This afternoon and evening, conditions will be favourable for the development of squalls with gusts up to 50 knots, frequent lightning and hail.

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 AM EDT 27 May 2024 Today Tonight and Tuesday At 3:00 a.m. EDT today high 1025 mb located near Natashquan.
By 8:00 p.m. EDT tonight high 1029 mb located south of Newfoundland.

At 3:00 a.m. EDT today low 998 mb located over Lake Huron.
By 8:00 p.m. EDT Tuesday low 995 mb located northwest of Sept-Îles.

Great Lakes - Lake Erie and Lake Ontario Area

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