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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 19 June 2021

Today Tonight and Sunday.

Strong wind warning in effect.

Wind southwest 10 to 15 knots increasing to southwest 20 to 30 early this morning with gusts to 40 near thunderstorms today. Wind becoming westerly 15 to 20 early this evening then diminishing to light late this evening. Wind increasing to southwest 10 to 20 near noon Sunday.

Showers this afternoon with a risk of thunderstorms.

Extended Forecast

Issued 06:00 AM EDT 19 June 2021
Monday Wind light increasing to southwest 15 to 25 knots in the morning.
Tuesday Wind southwest 10 to 15 knots becoming northerly 15.
Wednesday Wind westerly 15 to 20 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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Warnings

Warnings (In effect)

Strong wind warning in effect

Cornwall to Montréal

Issued 05:31 AM EDT 19 June 2021

'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 02:59 AM EDT 19 June 2021 This afternoon, conditions will be favourable for the development of squalls with gusts of up to 40 knots.

Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway. Consider delaying or postponing travel in areas under the Squall Watch.

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 19 June 2021 Today Tonight and Sunday At 3:00 a.m. EDT today low 996 mb located southeast of James Bay.
By 8:00 p.m. EDT Sunday weakening low 1004 mb located over
Anticosti Island.

Great Lakes - Lake Erie and Lake Ontario Area

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