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Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 11 September 2026

Today Tonight and Saturday.

Wind westerly 15 knots veering to northerly 15 after midnight then diminishing to light Saturday morning. Wind becoming southerly 10 to 15 Saturday evening.

Waves

Issued 05:00 AM ADT 11 September 2026
Today Tonight and Saturday. Seas 1 to 2 metres subsiding to 1 or less late overnight.

Extended Forecast

Issued 03:00 AM ADT 11 September 2026
Sunday Wind southerly 15 knots.
Monday Wind westerly 15 knots increasing to northwesterly 25.
Tuesday Wind northerly 15 knots diminishing to light.

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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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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 11 September 2026 Today Tonight and Saturday At 10:00 a.m. ADT today low 985 mb located east of Labrador.
By 3:00 a.m. ADT Saturday departing low 990 mb located over
Labrador Sea.

At 8:00 p.m. ADT tonight building ridge located near the Great
Lakes.
By 8:00 p.m. ADT Saturday ridge located on a line north-south over
the Marine District.

Marine Weather Statement

Issued 2:38 AM ADT 11 September 2026 Marine interests are advised that all gale warnings hgave ended.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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