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Forecast

Marine Forecast

Issued 03:00 AM ADT 13 July 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind light increasing to southwest 10 to 15 knots this morning and to southwest 15 to 20 this evening. Wind increasing to southwest 25 near noon Tuesday.

Waves

Issued 05:00 AM ADT 13 July 2026
Today Tonight and Tuesday. Seas 1 metre or less building to 1 to 2 after midnight and to 2 to 3 Tuesday evening.

Extended Forecast

Issued 03:00 AM ADT 13 July 2026
Wednesday Wind southwest 25 knots.
Thursday Wind west 15 to 20 knots backing to southwest 20 to 25.
Friday Wind westerly 20 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

Warnings (In effect)

Strong wind warning in effect

Lurcher

Issued 03:00 AM ADT 13 July 2026

'Strong' winds of 20 to 33 knots are occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 13 July 2026 Today Tonight and Tuesday At 3:00 a.m. ADT today ridge located on a line east-west over the
Gulf of Maine.
By 3:00 a.m. ADT Tuesday departing ridge located over the Grand
Banks.

At 10:00 a.m. ADT today trough located over the Gulf of
St. Lawrence.
By 10:00 a.m. ADT Tuesday trough located from Newfoundland to
New England.

St. Lawrence - St. Lawrence River Area

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