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Marine Forecast

Issued 03:00 AM ADT 15 August 2026

Today Tonight and Sunday.

Wind northwesterly 10 to 15 knots diminishing to light overnight. Wind light Sunday.

Waves

Issued 05:00 PM ADT 14 August 2026
Tonight and Saturday. Seas 1 metre.

Extended Forecast

Issued 03:00 AM ADT 15 August 2026
Monday Wind southerly 15 to 20 knots.
Tuesday Wind southeasterly 20 knots.
Wednesday Wind westerly 15 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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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 14 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 15 Aug estimated from Newfoundland near
4825N 5310W to 4840N 5220W to 5030N 5130W to 5900N 5500W to 6020N
5200W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 15 August 2026 Today Tonight and Sunday At 3:00 a.m. ADT today low 1003 mb located north of Banquereau.
By 3:30 p.m. ADT today departing low 1005 mb located east of the
Marine District.

At 8:00 p.m. ADT tonight ridge located over New England.
By 3:30 p.m. ADT Sunday ridge located over the Marine District.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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