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Marine Forecast

Issued 03:00 AM ADT 13 October 2026

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind northeast 30 knots diminishing to east 15 this morning then increasing to southeast 25 to 30 this evening. Wind diminishing to southwest 20 near noon Wednesday and to southwest 15 Wednesday evening.

Rain tonight and Wednesday. Risk of thunderstorms Wednesday morning. Visibility as low as 1 mile in rain.

Waves

Issued 05:00 AM ADT 13 October 2026
Today Tonight and Wednesday. Seas 2 to 3 metres subsiding to 1 to 2 near noon then building to 2 to 3 Wednesday morning. Seas subsiding to 1 to 2 Wednesday evening.

Extended Forecast

Issued 03:00 AM ADT 13 October 2026
Thursday Wind northwest 30 knots diminishing to northwest 15 late in the day.
Friday Wind variable 15 knots increasing to southeast 30.
Saturday Wind southwest 35 knots diminishing to northwest 30.

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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

Lurcher

Issued 03:00 AM ADT 13 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 13 October 2026 Today Tonight and Wednesday At 3:00 a.m. ADT today high 1024 mb located over Quebec.
By 3:00 a.m. ADT Wednesday high 1024 mb located over Banquereau.

At 3:00 a.m. ADT Wednesday low 1005 mb located over southern Quebec.
By 3:30 p.m. ADT Wednesday low 1003 mb located over southern
New Brunswick.

At 3:00 a.m. ADT today departing low 985 mb located over the
eastern Grand Banks.

Marine Weather Statement

Issued 2:43 AM ADT 13 October 2026 As a ridge moves in from the northwest, strong to gale force
northeasterly winds will diminish this morning. A low pressure system
will track across the Maritimes on Wednesday. Strong to gale force
southerly winds will increase ahead of the low.

Marine interests are advised that gale warnings are in effect for
eastern shore, Sable, Fourchu, Banquereau, Laurentian Fan, Cabot
Strait, Northumberland Strait - eastern half, and Gulf - Magdalen.

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

Today...Winds northeast 20 to 25 knots diminishing to northeast 15
knots in the morning then to light near noon then increasing to
southeast 15 near midnight. Choppy sea conditions in the morning when
winds will run against the rising tide.
Wednesday...Winds southeast 15 knots increasing to 20 to 25 knots in
the morning then becoming westerly 15 to 20 knots in the afternoon.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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