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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 05 September 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind northerly 20 knots increasing to northerly 30 this morning then diminishing to north 20 near noon Sunday.

Scattered showers ending Sunday morning.

Waves

Issued 05:00 AM ADT 05 September 2026
Today Tonight and Sunday. Seas 1 to 2 metres subsiding to 1 or less Sunday evening.

Extended Forecast

Issued 03:00 AM ADT 05 September 2026
Monday Wind northwest 15 to 20 knots.
Tuesday Wind northwest 20 knots.
Wednesday Wind light increasing to southerly 20 knots late in the day.

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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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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 05 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 5 September 2026 Today Tonight and Sunday At 3:00 a.m. ADT today low 998 mb located over Eastern Shore.
By 3:30 p.m. ADT today quasi-stationary low 996 mb located over
Banquereau.

Marine Weather Statement

Issued 2:41 AM ADT 5 September 2026 A low pressure system over eastern shore will continue to move
Slowly eastward today, then stall over Banquereau this
Evening and Sunday.

Strong to gale force easterlies or northeasterlies are expected
Over northern and eastern marine areas.

Marine interests are advised that gale warnings are in effect for
eastern shore, Sable, Fourchu, Banquereau, Cabot Strait,
Northumberland Strait, Gulf-Magdalen, and Anticosti - southeastern
half.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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