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Marine Forecast

Issued 03:00 AM ADT 06 September 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind northerly 25 knots diminishing to north 15 to 20 early this evening then becoming northwest 15 overnight. Wind backing to west 10 to 15 Monday afternoon.

Scattered showers ending near noon.

Waves

Issued 05:00 AM ADT 06 September 2026
Today Tonight and Monday. Seas 2 to 3 metres subsiding to 1 to 2 this afternoon and to 1 late overnight.

Extended Forecast

Issued 03:00 AM ADT 06 September 2026
Tuesday Wind northwest 20 knots.
Wednesday Wind light increasing to southerly 20 knots late in the day.
Thursday Wind southwest 25 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

Lurcher

Issued 03:00 AM ADT 06 September 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 6 September 2026 Today Tonight and Monday At 3:00 a.m. ADT today low 997 mb located over southern Banquereau.
By 3:00 a.m. ADT Monday low 997 mb located over northern Banquereau.

At 3:30 p.m. ADT Monday departing low 999 mb located over
Newfoundland.

Marine Weather Statement

Issued 2:39 AM ADT 6 September 2026 A low pressure system over Banquereau will remain nearly stationary
today and tonight. On Monday the low will move slowly northward to
lie over Newfoundland Monday afternoon. Strong to gale force
northeasterlies over northern and eastern waters will gradually
diminish later today and Monday.

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

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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