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Northumberland Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 11 October 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind northwest 15 to 20 knots becoming west 15 this morning then increasing to southwest 25 to 30 late this afternoon. Wind diminishing to west 20 Monday morning then increasing to northeast 25 to 30 near noon Monday.

Showers Monday afternoon and evening.

Extended Forecast

Issued 03:00 AM 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 03:00 AM 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 3:00 AM ADT 11 October 2026 Today Tonight and Monday At 3:00 a.m. ADT today ridge located over the Gulf of Maine.
By 3:00 a.m. ADT Monday ridge located over the southeastern Marine
District.

At 3:00 a.m. ADT Monday approaching trough located off Cape Cod.

Marine Weather Statement

Issued 2:47 AM ADT 11 October 2026 Marine interests are advised that gale warnings have been ended for
all marine districts.

Outlook for the start-up of the Upper Bay of Fundy lobster fishery.

Monday...Winds southwest 25 knots veering to west 15 knots 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 15 to 20 knots
near noon then increasing to southeast 20 knots late in the day.
Choppy sea conditions in the morning when winds will run against the
rising tide.
Wednesday...Winds southeast 25 knots becoming west 20 to 25 knots in
the afternoon. 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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