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Montréal to Trois-Rivières

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 21 June 2021

Tonight and Tuesday.

Strong wind warning in effect.

Wind southwest 15 to 25 knots with gusts to 50 near thunderstorms late this afternoon and this evening. Wind becoming northwest 15 late overnight then diminishing to light Tuesday afternoon.

Scattered showers ending near midnight with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Extended Forecast

Issued 06:00 PM EDT 21 June 2021
Wednesday Wind westerly 10 to 15 knots.
Thursday Wind light becoming south 15 knots.
Friday Wind southwest 10 to 15 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas West Bay of Fundy - 44490 Mont-Louis - 45138 Lake Nipissing - 45152 North Bay Airport Beauport Deschambault Île d'Orléans L'Assomption Trois-Rivières Airport Île aux-Grues Lac Saint-Pierre Montréal-Trudeau Int'l Airport Saint-Hubert Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Saint-Anicet Baie-Comeau Airport Cap-Rouge Île Rouge Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts Pointe-Noire Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Île Bicquette Cap-Chat CFB Bagotville Jonquière Mistook Normandin Roberval Airport Bas Caraquet Bathurst Airport Bouctouche AAFC Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Miscou Island Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau Saint John Airport St. Stephen Brier Island Yarmouth Airport North Cape
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Warnings

Warnings (In effect)

Strong wind warning in effect

Montréal to Trois-Rivières

Issued 3:00 PM EDT 21 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

Montréal to Trois-Rivières

Issued 4:57 PM EDT 21 June 2021 Conditions are favourable for the development of squalls with wind gusts up to 50 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.

Warnings (Ended)

Squall warning ended

Montréal to Trois-Rivières

Issued 4:45 PM EDT 21 June 2021
Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 21 June 2021 Tonight and Tuesday At 3:00 p.m. EDT today departing ridge located on a line north-south
over Natashquan.

At 3:00 p.m. EDT today trough located on a line northeast-southwest
over Cornwall.
By 8:00 p.m. EDT Tuesday trough located on a line
northeast-southwest over Anticosti Island.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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