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Pointe-des-Monts to Anticosti - northern half

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 09 September 2026

Tonight and Thursday.

Strong wind warning in effect.

Wind southeast 15 knots increasing to south 20 near midnight and to southwest 20 to 30 Thursday morning.

Showers overnight and Thursday. Risk of thunderstorms Thursday morning and Thursday afternoon. Visibility as low as 1 mile in showers.

Waves

Issued 03:00 PM EDT 09 September 2026
Tonight and Thursday. Seas 1 metre or less building to 2 near noon Thursday.

Extended Forecast

Issued 06:00 PM EDT 09 September 2026
Friday Wind southwest 25 knots increasing to west 25 to 35 in the morning then diminishing to northwest 20 late in the day.
Saturday Wind northwest 20 knots backing to southwest 15 to 25 late in the day.
Sunday Wind southwest 15 to 25 knots.

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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 9:04 PM EDT 09 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 9 September 2026 Tonight and Thursday At 3:00 p.m. EDT today ridge located from New England to Ungava Bay.
By 11:00 p.m. EDT tonight departing ridge located over Newfoundland.

At 3:00 p.m. EDT today trough located from James Bay to the
Great Lakes.
By 8:00 p.m. EDT Thursday trough located from Labrador to Nova
Scotia.

At 8:00 a.m. EDT Thursday ridge located over northwestern Ontario.
By 8:00 p.m. EDT Thursday ridge located on a line north-south over
Lake Huron.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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