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Northumberland Strait

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 11 October 2026

Tonight and Monday.

Strong wind warning in effect.

Wind west 15 knots increasing to southwest 25 to 30 early this evening then becoming northeast 25 to 30 near noon Monday.

Showers Monday afternoon and evening.

Extended Forecast

Issued 03:30 PM ADT 11 October 2026
Tuesday Wind northeast 20 knots.
Wednesday Wind southeast 30 knots.
Thursday Wind northwest 30 knots.

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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 3:30 PM ADT 11 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 11 October 2026 Tonight and Monday At 3:30 p.m. ADT today ridge located on a line northwest-southeast
over the southwestern Marine District.
By 3:30 p.m. ADT Monday ridge located over the eastern Marine
District.

At 3:00 a.m. ADT Monday low 1000 mb located over the southwestern
Marine District.
By 8:00 p.m. ADT Monday low 992 mb located over Laurentian Fan.

Marine Weather Statement

Issued 3:10 PM ADT 11 October 2026 Outlook for the start-up of the Upper Bay of Fundy lobster fishery.

Monday...Winds southwest 25 knots diminishing to light mid-day
And then to northeast 25 in the evening. Choppy sea conditions in the
evening when winds will be running against the rising tide.
Tuesday...Winds northeast 25 knots diminishing to east 10 to 15 knots
near noon then increasing to southeast 20 near midnight.
Choppy sea conditions in the morning when winds will run against the
rising tide.
Wednesday...Winds southeast 25 knots becoming southwest 25 knots in
the afternoon then to northwest 25 in the evening. Choppy sea
conditions late in the day when winds will be running against the
ebbing tide.
Thursday...Winds northwest 20 early in the day increasing to
northwest 25 in the afternoon.

St. Lawrence - St. Lawrence River Area

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