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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 16 June 2026

Tonight and Wednesday.

Wind southwest 15 knots and locally gusts to 30 near thunderstorms. Wind diminishing to light this evening then becoming southwest 10 to 15 Wednesday morning. Wind becoming light Wednesday afternoon.

Scattered showers ending near midnight with a risk of thunderstorms.

Waves

Issued 03:00 PM EDT 16 June 2026
Tonight and Wednesday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EDT 16 June 2026
Thursday Wind light increasing to northeast 15 to 25 knots in the afternoon.
Friday Wind northeast 15 to 25 knots.
Saturday Wind westerly 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 - Quai de St-Jean 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 16 June 2026 Tonight and Wednesday At 3:00 p.m. EDT today dissipating trough located on a line
north-south over the Gulf of St. Lawrence.

At 3:00 p.m. EDT today ridge located on a line northeast-southwest
over New England.
By 8:00 p.m. EDT Wednesday ridge located on a line north-south
over Nova Scotia.

At 8:00 p.m. EDT Wednesday approaching low 989 mb located over
the Midwestern states.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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