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Pointe-des-Monts to Anticosti - northern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 05 September 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind northeast 15 to 25 knots diminishing to east 10 to 15 near noon then becoming light late this afternoon. Wind becoming northeast 15 after midnight then diminishing to light Sunday morning. Wind becoming southwest 15 Sunday afternoon.

Showers and fog banks ending this morning.

Waves

Issued 03:00 AM EDT 05 September 2026
Today Tonight and Sunday. Seas 1 to 2 metres subsiding to 1 or less this afternoon.

Extended Forecast

Issued 06:00 PM EDT 04 September 2026
Sunday Wind northerly 15 knots backing to westerly 15 to 20 in the afternoon.
Monday Wind northwesterly 15 knots increasing to westerly 20 to 30.
Tuesday Wind north 20 to 30 knots diminishing to light late in the day.

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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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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 - northern half

Issued 03:00 AM EDT 05 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 AM EDT 5 September 2026 Today Tonight and Sunday At 3:00 a.m. EDT today building low 998 mb located over the Gulf
of Maine.
By 8:00 p.m. EDT Sunday low 998 mb located off Newfoundland.

At 3:00 a.m. EDT today quasi-stationary ridge located from Lake
Superior to Labrador.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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