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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 16 July 2025

Tonight and Thursday.

Strong wind warning in effect.

Wind southwest 15 to 25 knots diminishing to southwest 10 to 15 early this evening then becoming light late this evening. Wind increasing to northeast 10 to 15 late overnight and to northeast 15 to 25 Thursday morning.

Scattered showers ending near midnight with a risk of thunderstorms. Showers Thursday with a risk of thunderstorms. Visibility as low as 1 mile in showers.

Waves

Issued 03:00 PM EDT 16 July 2025
Tonight and Thursday. Seas 1 metre.

Extended Forecast

Issued 06:00 PM EDT 16 July 2025
Friday Wind northwest 10 to 15 knots backing to southwest 10 to 15 in the afternoon.
Saturday Wind southwest 10 to 15 knots increasing to southwest 15 to 20.
Sunday Wind light becoming westerly 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 10:06 PM EDT 16 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 16 July 2025 Tonight and Thursday At 3:00 p.m. EDT today ridge located on a line northwest-southeast
over Havre Saint-Pierre.
By 8:00 p.m. EDT tonight weakening ridge located on a line
northwest-southeast over the Quebec Lower North Shore.

At 3:00 p.m. EDT today warm front from low located on a line
east-west over Lake Superior.
By 8:00 p.m. EDT Thursday low 998 mb located north of Québec city.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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