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Marine Forecast

Issued 08:00 PM ADT 31 August 2026

Tonight and Tuesday.

Wind northwest 15 knots diminishing to light near midnight. Wind light Tuesday.

Waves

Issued 05:00 PM ADT 31 August 2026
Tonight and Tuesday. Seas 1 metre or less.

Extended Forecast

Issued 03:30 PM ADT 31 August 2026
Wednesday Wind light becoming east 15 knots in the afternoon.
Thursday Wind southeast 15 to 20 knots increasing to southeast 25.
Friday Wind southeast 25 knots diminishing to northwest 20.

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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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Ice Conditions

Ice Forecasts

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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 31 August 2026 Tonight and Tuesday At 8:00 p.m. ADT tonight departing trough located east of the
Marine District.

At 8:00 p.m. ADT tonight high located over Labrador.
By 8:00 p.m. ADT Tuesday building high located over the Maritimes.

Marine Weather Statement

Issued 7:46 PM ADT 31 August 2026 Marine interests are advised that all gale warnings are ended.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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