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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 13 September 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind southwesterly 10 to 15 knots increasing to southwesterly 15 to 20 this morning then diminishing to light near midnight. Wind increasing to westerly 15 to 20 near noon Monday then veering to northwest 25 Monday evening.

Scattered showers tonight and Monday. Fog patches forming this evening and dissipating Monday afternoon.

Waves

Issued 05:00 AM ADT 13 September 2026
Today Tonight and Monday. Seas 1 metre or less.

Extended Forecast

Issued 03:00 AM ADT 13 September 2026
Tuesday Wind northerly 15 knots diminishing to light in the afternoon.
Wednesday Wind southwest 15 knots.
Thursday Wind 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

Grand Manan

Issued 03:00 AM ADT 13 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 ADT 13 September 2026 Today Tonight and Monday At 3:00 a.m. ADT today trough located from Quebec to the Great
Lakes.
By 3:00 a.m. ADT Monday trough located from the Gulf of St. Lawrence
to Lurcher.

At 8:00 p.m. ADT Monday trough located over the southeastern
Marine District.

At 3:00 a.m. ADT today ridge located over the southern Marine
District.
By 3:30 p.m. ADT today departing ridge located over the Grand Banks.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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