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Forecast

Marine Forecast

Issued 08:00 PM ADT 12 July 2025

Tonight and Sunday.

Wind southwest 10 to 15 knots diminishing to light late this evening then becoming southwest 10 to 15 near noon Sunday.

Fog patches dissipating Sunday afternoon.

Waves

Issued 05:00 PM ADT 12 July 2025
Tonight and Sunday. Seas 1 metre or less.

Extended Forecast

Issued 03:30 PM ADT 12 July 2025
Monday Wind light becoming southwest 15 knots in the afternoon.
Tuesday Wind southwest 15 knots increasing to southwest 15 to 20.
Wednesday Wind light becoming southwest 15 knots late in the day.

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

Ice Forecasts

Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 12 July 2025 Tonight and Sunday At 8:00 p.m. ADT tonight departing low 1009 mb located over the
Grand Banks.

At 8:00 p.m. ADT tonight ridge located over the Maritimes.
By 3:30 p.m. ADT Sunday ridge located over the southern Marine
District.

At 3:30 p.m. ADT Sunday approaching low 1014 mb located southwest
of Georges Bank.

St. Lawrence - St. Lawrence River Area

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