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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EST 06 March 2026

Today Tonight and Saturday.

Wind light increasing to southerly 10 to 15 knots overnight and to southwest 15 to 25 Saturday morning. Wind increasing to southwest 25 to 30 Saturday evening.

Freezing rain beginning overnight changing to periods of rain Saturday morning.

Temperatures minus 14 rising to plus 7 Saturday evening.

Waves

Issued 03:00 AM EST 06 March 2026
Today Tonight and Saturday. Over open water seas 1 metre or less building to 1 to 2 Saturday afternoon.

Extended Forecast

Issued 06:00 AM EST 06 March 2026
Sunday Wind southwest 20 to 30 knots diminishing to northeast 15 in the morning then increasing to southwest 20 to 30 in the afternoon.
Monday Wind southwest 20 to 30 knots.
Tuesday Wind southwest 15 to 25 knots diminishing to southwest 10 to 15.

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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 AM EST 6 March 2026 Today Tonight and Saturday At 3:00 a.m. EST today ridge located on a line northwest-southeast
over Sept-Îles.
By 4:00 a.m. EST Saturday departing ridge located on a line
northwest-southeast over the Strait of Belle Isle.

At 7:00 p.m. EST tonight low 1003 mb located west of Lake Michigan.
By 7:00 p.m. EST Saturday low 988 mb located near Lake Saint-Jean.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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