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L'Isle-aux-Coudres to Tadoussac

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 29 April 2025

Today Tonight and Wednesday.

Gale warning in effect.

Wind southwest 10 to 20 knots increasing to southwest 20 to 30 near noon then becoming southwest 25 to 35 this evening. Wind diminishing to west 15 to 25 Wednesday morning and to west 10 to 15 near noon Wednesday.

Scattered showers this afternoon and tonight. Risk of thunderstorms late this afternoon and this evening. Visibility as low as 1 mile in showers.

Waves

Issued 03:00 AM EDT 29 April 2025
Today Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 this afternoon then subsiding to 1 or less Wednesday morning.

Extended Forecast

Issued 06:00 PM EDT 28 April 2025
Wednesday Wind westerly 20 to 30 knots diminishing to light in the afternoon.
Thursday Wind light.
Friday Wind northeast 15 to 25 knots.

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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 Saint-Hubert 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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land station Land Station
Ice Conditions

There is no ice forecast issued for this area.

Warnings

Warnings (In effect)

Gale warning in effect

L'Isle-aux-Coudres to Tadoussac

Issued 03:00 AM EDT 29 April 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 29 April 2025 Today Tonight and Wednesday At 3:00 a.m. EDT today ridge located from the East Coast of the
U.S. to Newfoundland.
By 8:00 a.m. EDT Wednesday departing ridge located off Newfoundland.

At 3:00 a.m. EDT today low 998 mb located over Lake Superior.
By 8:00 p.m. EDT Wednesday low 993 mb located over the Quebec
Lower North Shore.

At 8:00 p.m. EDT tonight high 1022 mb located over Lake Superior.
By 8:00 p.m. EDT Wednesday high 1023 mb located over western Quebec.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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