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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 31 August 2026

Tonight and Tuesday.

Strong wind warning in effect.

Wind westerly 15 to 25 knots becoming westerly 15 early this evening then becoming northeast 10 to 15 late this evening. Wind becoming southerly 10 to 15 Tuesday evening.

Waves

Issued 03:00 PM EDT 31 August 2026
Tonight and Tuesday. Seas 1 to 2 metres subsiding to 1 or less this evening.

Extended Forecast

Issued 06:00 AM EDT 31 August 2026
Wednesday Wind easterly 15 knots.
Thursday Wind easterly 15 knots increasing to northeast 15 to 25.
Friday Wind northeast 15 to 25 knots increasing to northeast 35.

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

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Pointe-des-Monts to Anticosti - southern half

Issued 3:00 PM EDT 31 August 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 31 August 2026 Tonight and Tuesday At 3:00 p.m. EDT today trough located from the Strait of Belle
Isle to Pointe-des-Monts.
By 8:00 p.m. EDT tonight departing trough located from the Strait
of Belle Isle to Anticosti Island.

At 3:00 p.m. EDT today ridge located on a line north-south over
Montréal.
By 8:00 p.m. EDT Tuesday ridge located on a line northwest-southeast
over Anticosti Island.

At 2:00 p.m. EDT Tuesday quasi-stationary trough located on a line
northwest-southeast over Lake Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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