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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 19 July 2025

Tonight and Sunday.

Strong wind warning in effect.

Wind southwest 15 to 20 knots diminishing to southwest 10 to 15 near midnight then increasing to southwest 20 Sunday afternoon. Wind diminishing to southwest 10 to 15 Sunday evening.

Showers and fog patches Sunday evening with a risk of thunderstorms.

Waves

Issued 05:00 AM ADT 19 July 2025
Today Tonight and Sunday. Seas 1 metre or less building to 1 to 2 this evening.

Extended Forecast

Issued 03:30 PM ADT 19 July 2025
Monday Wind northwest 15 knots.
Tuesday Wind northwest 15 knots backing to southwest 15 to 20.
Wednesday Wind light becoming southwest 10 to 15 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Saint-Hubert Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts 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 Miscou Island Kouchibouguac La Pocatière
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Strong wind warning in effect

Grand Manan

Issued 3:30 PM ADT 19 July 2025

'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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM ADT 19 July 2025 Tonight and Sunday At 3:30 p.m. ADT today quasi-stationary ridge located over the
southern Marine District.

At 10:00 a.m. ADT Sunday trough located northwest of the Marine
District.
By 8:00 p.m. ADT Sunday trough located from the Gulf of St. Lawrence
to the Gulf of Maine.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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