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Northumberland Strait

Warnings

Forecast

Marine Forecast

Issued 03:30 PM AST 18 November 2025

Tonight and Wednesday.

Wind westerly 25 knots diminishing to west 15 to 20 early Wednesday morning and to west 10 to 15 Wednesday evening.

Scattered showers ending near midnight.

Extended Forecast

Issued 03:30 PM AST 18 November 2025
Thursday Wind westerly 10 to 15 knots diminishing to light in the afternoon.
Friday Wind southeast 10 to 15 knots increasing to southeast 25 late in the day.
Saturday Wind southerly 15 knots increasing to west 25.

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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 Montréal Metropolitain 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

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 3:30 PM AST 18 November 2025 Tonight and Wednesday At 3:30 p.m. AST today low 975 mb located over Labrador.
By 8:00 p.m. AST Wednesday departing low 988 mb located north
of Labrador.

At 8:00 p.m. AST Wednesday approaching ridge located over New
England.

Marine Weather Statement

Issued 3:15 PM AST 18 November 2025 A low pressure system over Labrador will move very slowly north
tonight and Wednesday. Strong to gale force westerly winds are
expected to persist over Northern Gulf of St. Lawrence waters until
late in the day on Wednesday in the wake of the low.

Marine interests are advised that a gale warning is in effect for
Anticosti - western half.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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