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Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 22 September 2026

Tonight and Wednesday.

Wind northeasterly 15 knots increasing to northeast 25 Wednesday morning.

Waves

Issued 05:00 AM ADT 22 September 2026
Today Tonight and Wednesday. Seas 1 to 2 metres.

Extended Forecast

Issued 03:30 PM ADT 22 September 2026
Thursday Wind northeast 25 to 30 knots.
Friday Wind northeast 35 knots.
Saturday Wind northeast 35 knots diminishing to northeast 25 to 30 late in the day.

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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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buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

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

Iceberg Bulletin

Issued 2:30 PM EDT 22 September 2026

Iceberg Limit

Iceberg limit at 0000 UTC 23 Sep estimated from Newfoundland near
4930N 5510W to 5130N 5330W to 5400N 5330W to 6000N 5800W to 6125N
5435W to 5905N 4745W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM ADT 22 September 2026 Tonight and Wednesday At 3:30 p.m. ADT today quasi-stationary ridge located over the
Maritimes extending eastward.

At 3:30 p.m. ADT today quasi-stationary low 1010 mb located east
of Cape Hatteras.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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