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Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 08 September 2026

Tonight and Wednesday.

Strong wind warning in effect.

Wind northerly 15 knots diminishing to light late overnight then increasing to south 15 Wednesday afternoon. Wind increasing to south 25 Wednesday evening.

Scattered showers this afternoon.

Waves

Issued 05:00 PM ADT 08 September 2026
Tonight and Wednesday. Seas 1 metre or less building to 1 to 2 Wednesday evening.

Extended Forecast

Issued 03:30 PM ADT 08 September 2026
Thursday Wind southwest 30 knots.
Friday Wind west 15 knots.
Saturday Wind northwest 10 to 15 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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buoy Buoy
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

Lurcher

Issued 3:30 PM ADT 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 3:30 PM ADT 8 September 2026 Tonight and Wednesday At 3:30 p.m. ADT today trough located from Newfoundland to Sable
Island.
By 3:30 p.m. ADT Wednesday departing trough located over the
Grand Banks.

At 8:00 p.m. ADT tonight ridge located over New England.
By 8:00 p.m. ADT Wednesday ridge located from Newfoundland to West
Scotian Slope.

At 8:00 p.m. ADT Wednesday approaching trough located over Quebec.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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