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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 18 June 2026

Today Tonight and Friday.

Strong wind warning in effect.

Wind light increasing to southerly 15 knots near noon and to southeast 20 early this evening. Wind increasing to southeast 30 late this evening then diminishing to south 20 late overnight. Wind veering to southwest 15 to 20 early Friday morning then increasing to southwest 20 to 25 near noon Friday.

Rain tonight with a risk of thunderstorms. Fog patches dissipating near noon Friday.

Waves

Issued 05:00 AM ADT 18 June 2026
Today Tonight and Friday. Seas 1 metre or less building to 1 to 2 early this evening and to 2 to 3 near midnight. Seas subsiding to 1 to 2 Friday evening.

Extended Forecast

Issued 03:00 AM ADT 18 June 2026
Saturday Wind southwest 15 to 20 knots veering to westerly 10 to 15 late in the day.
Sunday Wind northerly 15 knots diminishing to light.
Monday Wind southwest 10 to 15 knots increasing to southwest 15 to 20.

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Map of Atlantic - Maritimes marine weather areas East Scotia Slope - 44137 Cap-Chat Burgeo Île Bicquette New Carlisle Îles de la Madeleine Airport Port Menier Summerside North Cape Pointe-au-Père Mont-Joli Airport La Pocatière Wreckhouse Banquereau - 44139 Port aux Basques Sagona Island Gaspé Airport LaHave Bank - 44150 Halifax Harbour - 44258 St. Lawrence Stephenville Western Head Winterland Branch Hill Île aux Perroquets Beaver Island Baccaro Point St. Stephen Pointe-des-Monts Saint John Airport Sept-Îles Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Longue-Pointe-de-Mingan Miscou Island Île Rouge Kouchibouguac Pointe-Noire Kouchibouguac Havre-Saint-Pierre Airport Grand Manan Fundy Park (Alma) Miramichi Charlo West Chedabucto Bay – 44489 Bathurst Airport Baie-Comeau Airport Bas Caraquet East Chedabucto Bay – 44488 Nappan AAFC East Point Charlottetown Airport Yarmouth Airport Cap-d'Espoir Tracadie J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Rivière-la-Madeleine 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 10:00 AM ADT 18 June 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 10:00 AM ADT 18 June 2026 Today Tonight and Friday At 10:00 a.m. ADT today low 1010 mb located over West Scotian Slope.
By 3:30 p.m. ADT today dissipating low 1010 mb located over East
Scotian Slope.

At 8:00 p.m. ADT tonight low 991 mb located near the Great Lakes.
By 8:00 p.m. ADT Friday low 994 mb located over New Brunswick.

Atlantic - Maritimes Area

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Marine Weather for Canada

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