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Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 19 July 2025

Today Tonight and Sunday.

Wind light increasing to southwesterly 10 to 15 knots near midnight and to south 15 to 20 Sunday afternoon.

Showers and fog patches Sunday evening.

Waves

Issued 05:00 AM ADT 19 July 2025
Today Tonight and Sunday. Seas 1 metre or less building to 1 to 2 Sunday morning.

Extended Forecast

Issued 03:00 AM ADT 19 July 2025
Monday Wind northwest 15 knots increasing to northwest 20 in the afternoon.
Tuesday Wind northwest 10 to 15 knots backing to westerly 15 to 20.
Wednesday Wind light.

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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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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 19 July 2025 Today Tonight and Sunday At 3:00 a.m. ADT today departing low 983 mb located over Labrador
Sea.

At 3:00 a.m. ADT today ridge located west of the Marine District.
By 3:30 p.m. ADT today ridge located over the southern Marine
District.

At 10:00 a.m. ADT Sunday trough located northwest of the Marine
District.
By 8:00 p.m. ADT Sunday trough located from the Gulf of St. Lawrence
to the Gulf of Maine.

Marine Weather Statement

Issued 2:25 AM ADT 19 July 2025 Marine interests are advised that all warnings have been ended.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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