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Northumberland Strait

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 26 October 2026

Tonight and Tuesday.

Strong wind warning in effect.

Wind southwest 20 to 25 knots veering to northwest 25 to 30 early this evening. Wind northwest 25 to 30 Tuesday.

Showers ending near midnight.

Extended Forecast

Issued 03:30 PM ADT 26 October 2026
Wednesday Wind northwest 20 to 25 knots diminishing to west 15 in the morning.
Thursday Wind southwest 15 to 20 knots.
Friday Wind southwest 15 to 20 knots veering to northwest 25 late in the day.

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Map of St. Lawrence - St. Lawrence River marine weather areas Mistook Jonquière CFB Bagotville Bathurst Airport Cap-Chat Charlo Île Bicquette Miramichi Port Menier Pointe-au-Père Montréal Metropolitain Airport Fundy Park (Alma) Normandin Roberval Airport L'Isle-aux-Grues Trois-Rivières Airport L'Assomption Île-d'Orléans - Quai de St-Jean Deschambault Beauport North Bay Airport Lake Nipissing - 45152 Bas Caraquet New Carlisle Montréal-Trudeau Int'l Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Saint-Anicet Baie-Comeau Airport Lac Saint-Pierre Cap-Rouge Île Rouge Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts North Cape Pointe-Noire Cap-d'Espoir Brier Island Yarmouth Airport Rivière-la-Madeleine St. Stephen Gaspé Airport Grand Manan Kouchibouguac Mont-Joli Airport Saint John Airport Miscou Island La Pocatière Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Northumberland Strait

Issued 3:30 PM ADT 26 October 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.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM ADT 26 October 2026 Tonight and Tuesday At 3:30 p.m. ADT today trough located from Newfoundland to the
Bay of Fundy.
By 10:00 a.m. ADT Tuesday departing trough located over the
Grand Banks.

At 8:00 p.m. ADT Tuesday approaching high located over Quebec.

Marine Weather Statement

Issued 3:20 PM ADT 26 October 2026 A trough of low pressure will track southeastward across the Gulf of
St. Lawrence tonight. Strong to gale force northwesterlies will
develop across the Northern Gulf of St. Lawrence on Tuesday behind
the trough.

Marine interests are advised that gale warnings are in effect for
Banquereau - northern half, Cabot Strait, Gulf - Magdalen -
northeastern half, and Anticosti - southwestern half.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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