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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 20 October 2026

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind north 10 to 15 knots increasing to northeast 20 near noon then diminishing to east 15 Wednesday morning.

Waves

Issued 05:00 AM ADT 20 October 2026
Today Tonight and Wednesday. Seas 1 metre or less.

Extended Forecast

Issued 03:00 AM ADT 20 October 2026
Thursday Wind northeast 10 to 15 knots increasing to north 30 in the afternoon.
Friday Wind north 30 knots diminishing to north 20.
Saturday Wind variable 15 knots.

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Map of Atlantic - Maritimes marine weather areas Baie-Comeau Airport Halifax Harbour - 44258 West Chedabucto Bay – 44489 North Cape Winterland Branch Hill Summerside Wreckhouse East Scotia Slope - 44137 Stephenville St. Lawrence Burgeo Havre-Saint-Pierre Airport Île aux Perroquets Île Rouge Longue-Pointe-de-Mingan Banquereau - 44139 Sept-Îles Airport Port aux Basques LaHave Bank - 44150 Sagona Island Mont-Joli Airport Beaver Island Baccaro Point St. Stephen Rivière-la-Madeleine Saint John Airport Gaspé Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Îles de la Madeleine Airport Miscou Island La Pocatière Kouchibouguac Cap-d'Espoir Grand Manan New Carlisle Fundy Park (Alma) Pointe-au-Père Miramichi Port Menier Charlo Île Bicquette Bathurst Airport Cap-Chat Bas Caraquet East Chedabucto Bay – 44488 Nappan AAFC East Point Charlottetown Airport Yarmouth Airport Pointe-Noire Western Head Tracadie J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Pointe-des-Monts McNabs Island Lunenburg Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island
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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 20 October 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 20 October 2026 Today Tonight and Wednesday At 3:00 a.m. ADT today trough from low located on a line east-west
over the southern Marine District.
By 3:00 a.m. ADT Wednesday trough from low located south of the
Marine District.

At 3:00 a.m. ADT Wednesday high located over southern Quebec.
By 8:00 p.m. ADT Wednesday ridge located over Newfoundland.

Marine Weather Statement

Issued 2:47 AM ADT 20 October 2026 A trough of low pressure extending northeastward from a low east of
Cape Hatteras is forecast to approach this morning then stall giving
strong to gale force northeasterlies to southern waters today and
Wednesday.

Marine interests are advised that gale warnings are in effect for
Georges Bank, West Scotian Slope, and East Scotian Slope.

Atlantic - Maritimes Area

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Marine Weather for Canada

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