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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 12 June 2026

Today Tonight and Saturday.

Strong wind warning in effect.

Wind northeast 10 to 15 knots increasing to northeast 15 to 25 this morning then becoming northeast 15 near midnight. Wind diminishing to light overnight then becoming northeast 15 near noon Saturday. Wind diminishing to light Saturday evening.

Showers beginning early this morning. Risk of thunderstorms tonight. Fog banks dissipating this morning. Visibility 1 mile or less in fog banks and as low as 1 mile in showers.

Waves

Issued 03:00 AM EDT 12 June 2026
Today Tonight and Saturday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 AM EDT 12 June 2026
Sunday Wind southwest 15 knots increasing to southwest 15 to 25 in the afternoon.
Monday Wind southwest 15 to 25 knots.
Tuesday Wind southwest 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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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 08:08 AM EDT 12 June 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 12 June 2026 Today Tonight and Saturday At 3:00 a.m. EDT today trough located on a line north-south over
Trois-Rivières.
By 2:00 p.m. EDT today weakening trough located from Lake Saint-Jean
to Québec city.

At 3:00 a.m. EDT today trough located on a line north-south over
Lake Huron.
By 8:00 p.m. EDT Saturday trough located on a line
northwest-southeast over Rimouski.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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