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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 13 August 2026

Today Tonight and Friday.

Wind light becoming variable 15 knots near noon then diminishing to light early this evening. Wind becoming northwest 15 late overnight. Wind northwest 15 Friday.

Scattered showers this afternoon and this evening with a risk of thunderstorms. Fog patches forming near noon and dissipating Friday morning.

Waves

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

Extended Forecast

Issued 03:00 AM ADT 13 August 2026
Saturday Wind northwest 15 knots backing to southwest 15 in the afternoon.
Sunday Wind light becoming southwest 15 knots.
Monday Wind light increasing to variable 15 to 20 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 10:00 AM ADT 13 August 2026 Today Tonight and Friday At 10:00 a.m. ADT today trough located over western Maine.
By 8:00 p.m. ADT tonight trough located from the Gaspe Peninsula
to Cape Cod.

At 10:00 a.m. ADT Friday low 1004 mb located over Cabot Strait.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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