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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 11 April 2026

Tonight and Sunday.

Wind light tonight and Sunday.

Low tonight minus 1. High Sunday plus 4.

Waves

Issued 03:00 PM EDT 11 April 2026
Tonight and Sunday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EDT 11 April 2026
Monday Wind light increasing to southwest 20 to 30 knots in the morning.
Tuesday Wind northeast 10 to 15 knots.
Wednesday Wind northeast 10 to 15 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île d'Orléans Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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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 11 April 2026 Tonight and Sunday At 3:00 p.m. EDT today low 1007 mb located over the Gulf of
St. Lawrence.
By 6:00 a.m. EDT Sunday departing low 1000 mb located over
Newfoundland.

At 3:00 p.m. EDT today high 1032 mb located from the Great Lakes
to Hudson Bay.
By 8:00 p.m. EDT Sunday high 1033 mb located from the East Coast
of the U.S. to Labrador.

At 8:00 p.m. EDT Sunday approaching low 992 mb located west of
Lake Superior.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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