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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EST 20 January 2026

Tonight and Wednesday.

Wind west 15 to 25 knots backing to southwest 20 to 30 early Wednesday morning then diminishing to light Wednesday evening.

Scattered flurries Wednesday evening.

Low tonight minus 16. High Wednesday minus 8.

Waves

Issued 03:00 PM EST 20 January 2026
Tonight and Wednesday. Mainly ice covered.

Extended Forecast

Issued 06:00 PM EST 20 January 2026
Thursday Wind light increasing to southwest 15 to 25 knots in the afternoon.
Friday Wind southwest 15 knots.
Saturday Wind northwest 15 knots backing to southwest 15.

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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 Montréal Metropolitain 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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buoy Buoy
land station Land Station
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 AM EST 21 January 2026 Today Tonight and Thursday At 3:00 a.m. EST today trough located on a line northeast-southwest
over Natashquan.
By 3:00 p.m. EST today departing trough located over Labrador Sea.

At 3:00 a.m. EST today ridge located on a line north-south over
Rivière-du-Loup.
By 7:00 a.m. EST Thursday departing ridge located on a line
northwest-southeast over Natashquan.

At 3:00 p.m. EST today building trough located on a line north-south
over Lake Superior.
By 7:00 p.m. EST Thursday 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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