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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 12 July 2026

Tonight and Monday.

Strong wind warning in effect.

Wind southwesterly 15 knots increasing to southwest 15 to 25 Monday morning.

Scattered showers Monday. Risk of thunderstorms Monday late in the day.

Waves

Issued 03:00 PM EDT 12 July 2026
Tonight and Monday. Seas 1 metre or less building to 1 to 2 near noon Monday.

Extended Forecast

Issued 06:00 PM EDT 12 July 2026
Tuesday Wind southwest 15 to 20 knots increasing to southwest 25 to 35 in the afternoon.
Wednesday Wind southwest 25 to 35 knots.
Thursday Wind southwest 25 to 35 knots diminishing to southwest 15 to 25 late in the day.

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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

Pointe-des-Monts to Anticosti - southern half

Issued 3:00 PM EDT 12 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 PM EDT 12 July 2026 Tonight and Monday At 3:00 p.m. EDT today departing ridge located on a line north-south
over southern Quebec.

At 3:00 p.m. EDT today trough located on a line north-south over
northern Ontario.
By 8:00 p.m. EDT Monday trough located from Montréal to Labrador.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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