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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 10 May 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind south 10 to 15 knots increasing to southwest 15 to 20 late this morning and to southwest 20 to 30 early this afternoon. Wind diminishing to light this evening. Wind light Monday.

Scattered showers beginning early this morning.

Waves

Issued 03:00 AM EDT 10 May 2026
Today Tonight and Monday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 AM EDT 10 May 2026
Tuesday Wind light.
Wednesday Wind light becoming northeast 10 to 15 knots.
Thursday Wind light.

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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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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 10:57 AM EDT 10 May 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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 10 May 2026 Today Tonight and Monday At 3:00 a.m. EDT today intensifying ridge located from Newfoundland
to Labrador.
By 8:00 a.m. EDT Monday departing ridge located on a line east-west
over the Quebec Lower North Shore.

At 3:00 a.m. EDT today low 995 mb located over western Quebec.
By 8:00 p.m. EDT Monday departing low 999 mb located near Hudson
Strait.

At 3:00 a.m. EDT today cold front from low located on a line
northeast-southwest over Toronto.
By 8:00 p.m. EDT tonight cold front from low located on a line
north-south over the Gulf of St. Lawrence.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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