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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 06 October 2026

Today Tonight and Wednesday.

Storm warning in effect.

Wind west 30 to 40 knots increasing to west 40 to 50 this morning then diminishing to west 30 to 40 this evening. Wind diminishing to west 20 to 30 Wednesday morning and to southwest 15 near noon Wednesday.

Showers ending this evening. Scattered showers Wednesday evening.

Waves

Issued 03:00 AM EDT 06 October 2026
Today Tonight and Wednesday. Seas 3 to 4 metres subsiding to 2 to 3 near midnight and to 1 to 2 Wednesday morning. Seas subsiding to 1 or less Wednesday afternoon.

Extended Forecast

Issued 06:00 PM EDT 05 October 2026
Wednesday Wind west 30 to 40 knots diminishing to west 20 to 30 in the morning and to southerly 15 to 20 in the afternoon.
Thursday Wind southeast 10 to 15 knots increasing to southwest 15 to 25.
Friday Wind southwest 10 to 15 knots increasing to southwest 15 to 25.

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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)

Storm warning in effect

Pointe-des-Monts to Anticosti - southern half

Issued 03:00 AM EDT 06 October 2026

'Storm' force winds of 48 to 63 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 6 October 2026 Today Tonight and Wednesday At 3:00 a.m. EDT today low 984 mb located over the Quebec Lower
North Shore.
By 8:00 p.m. EDT Wednesday departing low 986 mb located over
Labrador Sea.

At 3:00 a.m. EDT today ridge located on a line north-south over
Lake Huron.
By 8:00 p.m. EDT Wednesday ridge located on a line north-south
over Newfoundland.

At 8:00 p.m. EDT Wednesday approaching low 995 mb located near
James Bay.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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