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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 19 July 2025

Tonight and Sunday.

Strong wind warning in effect.

Wind southwest 15 to 25 knots becoming southwest 15 this evening then diminishing to light near noon Sunday with gusts to 30 near thunderstorms. Wind becoming northwest 10 to 15 Sunday evening.

Showers. Risk of thunderstorms late this afternoon and Sunday afternoon and evening. Visibility as low as 1 mile in showers.

Waves

Issued 03:00 PM EDT 19 July 2025
Tonight and Sunday. Seas 1 metre.

Extended Forecast

Issued 06:00 AM EDT 19 July 2025
Monday Wind northwest 10 to 15 knots.
Tuesday Wind light.
Wednesday Wind southwest 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 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

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Strong wind warning in effect

L'Isle-aux-Coudres to Tadoussac

Issued 3:00 PM EDT 19 July 2025

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 19 July 2025 Tonight and Sunday At 3:00 p.m. EDT today trough located on a line northeast-southwest
over northern Ontario.
By 8:00 p.m. EDT Sunday trough located from Natashquan to the Gulf
of Maine.

At 3:00 p.m. EDT today high located on a line north-south over
Manitoba.
By 8:00 p.m. EDT Sunday high located on a line north-south over
Lake Superior.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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