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Cornwall to Montréal

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 20 May 2025

Tonight and Wednesday.

Wind northeast 10 to 15 knots veering to southeasterly 10 to 15 Wednesday morning.

Scattered showers tonight and Wednesday.

Extended Forecast

Issued 06:00 AM EDT 20 May 2025
Thursday Wind northeast 15 knots.
Friday Wind northeast 15 to 25 knots.
Saturday Wind northeast 15 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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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 PM EDT 20 May 2025 Tonight and Wednesday At 3:00 p.m. EDT today ridge located on a line north-south over
Lake Ontario.
By 8:00 p.m. EDT Wednesday ridge located on a line north-south
over Anticosti Island.

At 3:00 p.m. EDT today low 1000 mb located southwest of Lake
Michigan.
By 8:00 p.m. EDT Wednesday low 1002 mb located over Lake Erie.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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