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Northumberland Strait

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 08 October 2026

Tonight and Friday.

Strong wind warning in effect.

Wind south 15 to 20 knots veering to west 20 after midnight then to northwest 25 Friday evening.

Scattered showers ending overnight. Risk of thunderstorms late this evening. Scattered showers Friday late in the day.

Extended Forecast

Issued 03:30 PM ADT 08 October 2026
Saturday Wind northwest 30 knots.
Sunday Wind northwest 20 knots backing to southwest 15.
Monday Wind southwest 15 knots increasing to northeast 20 to 25.

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Map of St. Lawrence - St. Lawrence River marine weather areas Grand Manan New Carlisle Pointe-au-Père Fundy Park (Alma) Port Menier Miramichi Île Bicquette Charlo Cap-Chat Bathurst Airport CFB Bagotville Jonquière Mistook Normandin Roberval Airport Île-d'Orléans - Quai de St-Jean Deschambault North Bay Airport Beauport L'Isle-aux-Grues Bas Caraquet Lake Nipissing - 45152 Pointe-des-Monts L'Assomption Baie-Comeau Airport Saint-Anicet Cap-Rouge Sainte-Anne-de-Bellevue Lac Memphrémagog Montréal Metropolitain Airport Île Rouge Montréal-Trudeau Int'l Airport Lac Saint-Pierre Trois-Rivières Airport Pointe de l'Islet Pointe Claveau Sept-Îles Airport Kouchibouguac 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 La Pocatière Miscou Island Mont-Joli Airport
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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 8:00 PM ADT 08 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 8:00 PM ADT 8 October 2026 Tonight and Friday At 8:00 p.m. ADT tonight trough located from the Gaspe Peninsula
to the Gulf of Maine.
By 3:30 p.m. ADT Friday trough located east of Newfoundland.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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