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Marine Forecast

Issued 10:00 AM ADT 16 July 2026

Today Tonight and Friday.

Strong wind warning in effect.

Wind westerly 15 knots increasing to southwest 20 to 25 this afternoon then diminishing to westerly 15 near midnight. Wind westerly 15 Friday.

Showers this evening with a risk of thunderstorms.

Waves

Issued 05:00 AM ADT 16 July 2026
Today Tonight and Friday. Seas 1 to 2 metres subsiding to 1 or less Friday evening.

Extended Forecast

Issued 03:00 AM ADT 16 July 2026
Saturday Wind southwesterly 10 to 15 knots backing to southerly 20 in the afternoon.
Sunday Wind southwest 25 to 30 knots diminishing to west 15 to 20.
Monday Wind westerly 15 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 10:00 AM ADT 16 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 10:00 AM ADT 16 July 2026 Today Tonight and Friday At 10:00 a.m. ADT today quasi-stationary low located over Labrador.

At 10:00 a.m. ADT today trough located over Quebec.
By 3:00 a.m. ADT Friday trough located from Newfoundland to East
Scotian Slope.

At 10:00 a.m. ADT Friday departing trough located east of the
Marine District.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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