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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 15 March 2026

Today Tonight and Monday.

Wind light becoming northeast 10 to 15 knots near midnight. Wind easterly 10 to 15 Monday.

Snow beginning near midnight with a risk of freezing rain Monday morning and afternoon changing to periods of rain Monday afternoon. Visibility 1 mile or less in precipitation.

Temperatures minus 4 rising to plus 4 Monday evening.

Waves

Issued 03:00 AM EDT 15 March 2026
Today Tonight and Monday. Over open water seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EDT 14 March 2026
Monday Wind northeast 15 to 25 knots diminishing to northeast 10 to 15 in the morning.
Tuesday Wind southwest 15 to 25 knots increasing to southwest 30 to 40.
Wednesday Wind southwest 15 to 25 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 AM EDT 15 March 2026 Today Tonight and Monday At 3:00 a.m. EDT today departing low 996 mb located near
Newfoundland.

At 3:00 a.m. EDT today ridge located on a line north-south over
western Québec city.
By 4:00 p.m. EDT Monday ridge located on a line northwest-southeast
over Newfoundland.

At 4:00 p.m. EDT today low 991 mb located over the Midwestern
states.
By 8:00 p.m. EDT Monday low 988 mb located over southwestern Quebec.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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