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Pointe-des-Monts to Anticosti - northern half

Forecast

Marine Forecast

Issued 03:00 PM EDT 08 September 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind north 15 to 20 knots diminishing to light near midnight then increasing to south 15 early Wednesday afternoon. Wind increasing to south 15 to 25 Wednesday evening.

Scattered showers Wednesday afternoon and evening.

Waves

Issued 03:00 PM EDT 08 September 2026
Tonight and Wednesday. Seas 1 to 2 metres subsiding to 1 or less late this afternoon.

Extended Forecast

Issued 06:00 PM EDT 08 September 2026
Thursday Wind south 15 to 25 knots increasing to southwest 25 to 35 in the afternoon.
Friday Wind west 25 to 35 knots diminishing to northwest 20 late in the day.
Saturday Wind northwest 20 knots diminishing to 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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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 - northern half

Issued 3:00 PM EDT 08 September 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 8 September 2026 Tonight and Wednesday At 3:00 p.m. EDT today ridge located from Cornwall to Ungava Bay.
By 8:00 p.m. EDT Wednesday departing ridge located over
Newfoundland.

At 8:00 a.m. EDT Wednesday trough located from Hudson Bay to the
Great Lakes.
By 8:00 p.m. EDT Wednesday trough located from James Bay to
Cornwall.

St. Lawrence - St. Lawrence River Area

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