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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EST 11 November 2025

Tonight and Wednesday.

Wind westerly 15 to 25 knots backing to southwest 15 to 20 Wednesday morning then diminishing to light Wednesday evening.

Flurries ending near midnight.

Low tonight minus 1. High Wednesday plus 4.

Waves

Issued 03:00 PM EST 11 November 2025
Tonight and Wednesday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EST 11 November 2025
Thursday Wind light.
Friday Wind northeast 10 to 15 knots backing to northwesterly 10 to 20 late in the day.
Saturday Wind southwesterly 10 to 15 knots.

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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 Montréal Metropolitain 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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buoy Buoy
land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EST 11 November 2025 Tonight and Wednesday At 3:00 p.m. EST today merging low 983 mb located southwest of
Labrador.
At 6:00 p.m. EST tonight intensifying low 986 mb located near
Sable Island.
By 7:00 p.m. EST Wednesday low 961 mb located over northern
Labrador.

At 3:00 p.m. EST today ridge located on a line north-south over
Lake Huron.
By 7:00 p.m. EST Wednesday ridge located on a line
northwest-southeast over Québec city.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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