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Cornwall to Montréal

Forecast

Marine Forecast

Issued 03:00 PM EDT 26 June 2019

Tonight and Thursday.

Strong wind warning in effect. Squall watch in effect.

Wind southwest 10 to 15 knots increasing to southwest 15 to 25 late this afternoon with gusts to 40 near thunderstorms. Wind becoming southwest 15 late this evening then diminishing to light near midnight. Wind increasing to southwest 15 Thursday morning and to southwesterly 15 to 25 near noon Thursday. Wind diminishing to westerly 10 to 15 Thursday evening.

Showers late this afternoon and this evening with a risk of thunderstorms. Showers beginning near noon Thursday with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Extended Forecast

Issued 06:00 AM EDT 26 June 2019
Friday Wind light.
Saturday Wind light.
Sunday Wind light increasing to westerly 10 to 20 knots.

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Weather Conditions

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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)

Squall warning in effect

Cornwall to Montréal

Issued 3:13 PM EDT 26 June 2019 Squalls with gusts in excess of 35 knots are expected in the area within the next few hours.

Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately. Consider delaying or postponing travel in areas under the squall warning.

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

Strong wind warning in effect

Cornwall to Montréal

Issued 3:00 PM EDT 26 June 2019

'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 3:18 PM EDT 26 June 2019 Conditions are favourable for the development of squalls with wind gusts in excess of 35 knots into this evening.

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 PM EDT 26 June 2019 Tonight and Thursday At 3:00 p.m. EDT today trough located on a line northeast-southwest
over Lake Ontario.
By 8:00 p.m. EDT Thursday trough located on a line
northwest-southeast over Rimouski.

Great Lakes - Lake Erie and Lake Ontario Area

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