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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 15 July 2025

Tonight and Wednesday.

Wind southwest 10 to 20 knots becoming light early this evening then increasing to southwest 15 to 20 Wednesday morning. Wind diminishing to southwest 10 to 15 Wednesday evening.

Scattered showers Wednesday evening with a risk of thunderstorms.

Waves

Issued 03:00 PM EDT 15 July 2025
Tonight and Wednesday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EDT 15 July 2025
Thursday Wind northeast 15 to 25 knots.
Friday Wind southwest 15 to 25 knots becoming southwest 15.
Saturday Wind southwest 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 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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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 EDT 15 July 2025 Tonight and Wednesday At 3:00 p.m. EDT today trough located on a line northeast-southwest
over Havre Saint-Pierre.
By 2:00 a.m. EDT Wednesday departing trough located on a line
northeast-southwest over the Quebec Lower North Shore.

At 3:00 p.m. EDT today ridge located over northwestern Quebec.
By 8:00 p.m. EDT Wednesday weakening ridge located on a line
northwest-southeast over Sept-Îles.

At 3:00 p.m. EDT today approaching warm front located on a line
east-west over Lake Superior.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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