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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 14 July 2026

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind southwest 10 to 15 knots increasing to southwest 15 to 20 early this morning and to southwest 25 this afternoon. Wind diminishing to westerly 15 after midnight then increasing to west 20 to 25 Wednesday afternoon.

Scattered showers ending late this morning with a risk of thunderstorms. Showers tonight with a risk of thunderstorms. Scattered showers Wednesday afternoon and evening. Risk of thunderstorms late Wednesday evening.

Waves

Issued 05:00 PM ADT 13 July 2026
Tonight and Tuesday. Seas 1 metre or less building to 1 to 2 this evening.

Extended Forecast

Issued 03:00 AM ADT 14 July 2026
Thursday Wind west 15 to 20 knots backing to southwest 20 to 25 in the afternoon.
Friday Wind northwest 15 knots backing to southwest 20.
Saturday Wind southwest 20 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île-d'Orléans - Quai de St-Jean Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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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 14 July 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 14 July 2026 Today Tonight and Wednesday At 3:00 a.m. ADT today trough located from Labrador to New England.
By 8:00 p.m. ADT tonight intensifying trough located from Anticosti
Island to the Gulf of Maine.

At 3:30 p.m. ADT Wednesday trough located over Newfoundland to
Georges Bank.

Marine Weather Statement

Issued 2:41 AM ADT 14 July 2026 A trough of low pressure northwest of the region will intensify as it
tracks across the Maritimes tonight to lie over southeastern waters
Wednesday afternoon. Strong southwest winds will strengthen to gale
force over southeastern waters on Wednesday ahead of the approaching
trough.

Marine interests are advised that gale warnings are in effect for
East Scotian Slope - southeastern half, Banquereau - southeastern
half and Laurentian Fan.

St. Lawrence - St. Lawrence River Area

Another Region

Marine Weather for Canada

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