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Marine Forecast

Issued 08:00 PM ADT 16 August 2026

Tonight and Monday.

Wind light becoming southwesterly 15 knots Monday morning.

Waves

Issued 05:00 PM ADT 16 August 2026
Tonight and Monday. Seas 1 metre or less.

Extended Forecast

Issued 03:30 PM ADT 16 August 2026
Tuesday Wind variable 10 to 15 knots.
Wednesday Wind light becoming southwest 15 knots.
Thursday Wind light.

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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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 16 August 2026 Tonight and Monday At 8:00 p.m. ADT tonight ridge located over the Marine District.
By 3:00 a.m. ADT Monday quasi-stationary ridge located over the
southeastern Marine District.

At 3:00 a.m. ADT Monday trough located over the Great Lakes.
By 3:30 p.m. ADT Monday approaching trough located over New England.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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