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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 09 August 2026

Today Tonight and Monday.

Wind light becoming southwest 15 knots this afternoon then veering to northwest 15 near midnight. Wind diminishing to light Monday morning then becoming southwest 10 to 15 Monday afternoon.

Scattered showers this afternoon and this evening. Fog patches dissipating near midnight.

Waves

Issued 05:00 AM ADT 09 August 2026
Today Tonight and Monday. Seas 1 metre or less.

Extended Forecast

Issued 03:00 AM ADT 09 August 2026
Tuesday Wind southwest 15 to 20 knots.
Wednesday Wind northwest 15 knots backing to southwest 20.
Thursday Wind southwest 15 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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 9 August 2026 Today Tonight and Monday At 3:00 a.m. ADT today trough located from Maine to Nova Scotia.
By 3:00 a.m. ADT Monday trough located from the Gulf of St. Lawrence
to Banquereau.

At 8:00 p.m. ADT Monday departing trough located from Cabot Strait
to the Grand Banks.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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