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Marine Forecast

Issued 10:00 AM ADT 11 July 2026

Today Tonight and Sunday.

Wind northwest 10 to 15 knots diminishing to light early Sunday morning.

Waves

Issued 05:00 AM ADT 11 July 2026
Today Tonight and Sunday. Seas 1 metre or less.

Extended Forecast

Issued 03:00 AM ADT 11 July 2026
Monday Wind light increasing to southwest 20 knots in the afternoon.
Tuesday Wind southwest 25 knots.
Wednesday Wind southwest 25 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île-d'Orléans - Quai de St-Jean Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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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 July 2026 Today Tonight and Sunday At 10:00 a.m. ADT today trough located from the Avalon Peninsula
to East Scotian Slope.
By 8:00 p.m. ADT tonight departing trough located over the Grand
Banks.

At 10:00 a.m. ADT today ridge located over Ontario.
By 3:30 p.m. ADT Sunday ridge located from the Great Lakes to the
Gulf of St. Lawrence.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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