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Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 15 July 2025

Tonight and Wednesday.

Wind southwest 10 to 15 knots diminishing to light late overnight then becoming southwest 10 to 15 Wednesday evening.

Fog patches.

Waves

Issued 05:00 PM ADT 15 July 2025
Tonight and Wednesday. Seas 1 metre or less.

Extended Forecast

Issued 03:30 PM ADT 15 July 2025
Thursday Wind southwest 10 to 15 knots increasing to southwest 20 to 25 in the afternoon.
Friday Wind southwest 15 knots veering to northwest 15 to 20.
Saturday Wind light.

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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 3:30 PM ADT 15 July 2025 Tonight and Wednesday At 3:30 p.m. ADT today low 1015 mb located over Laurentian Fan.
By 8:00 p.m. ADT tonight departing low 1016 mb located over the
southwestern Grand Banks.

At 8:00 p.m. ADT tonight approaching ridge located west of the
Marine District.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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