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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 18 August 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind easterly 10 to 15 knots increasing to southwest 15 to 25 Wednesday evening.

Scattered showers overnight and Wednesday. Fog banks.

Waves

Issued 03:00 PM EDT 18 August 2026
Tonight and Wednesday. Seas 1 metre or less.

Extended Forecast

Issued 06:00 PM EDT 18 August 2026
Thursday Wind southwest 10 to 20 knots increasing to southwest 20 to 30 in the morning.
Friday Wind southwest 15 to 25 knots.
Saturday Wind west 10 to 15 knots becoming 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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buoy Buoy
land station Land Station
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

Pointe-des-Monts to Anticosti - southern half

Issued 3:00 PM EDT 18 August 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 PM EDT 18 August 2026 Tonight and Wednesday At 3:00 p.m. EDT today dissipating ridge located from Montréal
to Tadoussac.

At 3:00 p.m. EDT today trough located on a line northeast-southwest
over Lake Superior.
By 8:00 p.m. EDT Wednesday trough located on a line
northeast-southwest over the Gaspe Peninsula.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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