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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 10 October 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind westerly 10 to 15 knots becoming light early this evening then increasing to southwest 10 to 20 overnight. Wind increasing to southwest 20 to 30 near noon Sunday.

Waves

Issued 03:00 AM EDT 10 October 2026
Today Tonight and Sunday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EDT 09 October 2026
Sunday Wind light increasing to southwest 20 to 30 knots in the afternoon.
Monday Wind southwest 15 knots increasing to northeast 25 late in the day.
Tuesday Wind northeast 15 to 25 knots diminishing to northeast 10 to 15 late in the day.

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Map of St. Lawrence - St. Lawrence River marine weather areas Grand Manan New Carlisle Pointe-au-Père Fundy Park (Alma) Port Menier Miramichi Île Bicquette Charlo Cap-Chat Bathurst Airport CFB Bagotville Jonquière Mistook Normandin Roberval Airport Île-d'Orléans - Quai de St-Jean Deschambault North Bay Airport Beauport L'Isle-aux-Grues Bas Caraquet Lake Nipissing - 45152 Pointe-des-Monts L'Assomption Baie-Comeau Airport Saint-Anicet Cap-Rouge Sainte-Anne-de-Bellevue Lac Memphrémagog Montréal Metropolitain Airport Île Rouge Montréal-Trudeau Int'l Airport Lac Saint-Pierre Trois-Rivières Airport Pointe de l'Islet Pointe Claveau Sept-Îles Airport Kouchibouguac 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 La Pocatière Miscou Island Mont-Joli Airport
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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 03:00 AM EDT 10 October 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 10 October 2026 Today Tonight and Sunday At 3:00 a.m. EDT today intensifying ridge located on a line
northwest-southeast over western Quebec.
By 2:00 p.m. EDT Sunday weakening ridge located on a line
north-south over Nova Scotia.

At 2:00 p.m. EDT Sunday low 1007 mb located near James Bay.
By 8:00 p.m. EDT Sunday low 1006 mb located north of Lake
Saint-Jean.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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