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Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 28 July 2026

Tonight and Wednesday.

Wind light increasing to east 10 to 15 knots Wednesday morning and to east 15 to 20 Wednesday afternoon.

Fog patches.

Waves

Issued 05:00 AM ADT 28 July 2026
Today Tonight and Wednesday. Seas 1 to 2 metres.

Extended Forecast

Issued 03:30 PM ADT 28 July 2026
Thursday Wind easterly 15 to 20 knots.
Friday Wind variable 10 to 15 knots.
Saturday Wind 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 3:30 PM ADT 28 July 2026 Tonight and Wednesday At 3:30 p.m. ADT today departing low 1004 mb located over
Banquereau.

At 3:30 p.m. ADT today building ridge located over the southwestern
Marine District.
By 8:00 p.m. ADT tonight quasi-stationary ridge located over the
central Marine District.

By 8:00 p.m. ADT Wednesday low 1001 mb located over Long Island.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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