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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 10 May 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind south 20 knots backing to southeast 25 early this morning then diminishing to south 15 early this evening. Wind diminishing to light near midnight then becoming west 15 Monday evening.

Showers ending Monday morning. Risk of thunderstorms this evening. Fog patches dissipating Monday afternoon.

Waves

Issued 05:00 AM ADT 10 May 2026
Today Tonight and Monday. Seas 1 to 2 metres subsiding to 1 or less Monday afternoon.

Extended Forecast

Issued 03:00 AM ADT 10 May 2026
Tuesday Wind light.
Wednesday Wind northwest 15 knots backing to southwest 15.
Thursday Wind south 15 knots backing to southeast 20.

Ice Forecast

Issued 10:00 AM EDT 9 May 2026 Today Tonight and Sunday Ice free. 

[ Canadian Ice Service ]

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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 Airport 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 9 May 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Quebec near 5015N 6410W to 5002N 6332W to
4956N 5959W to 5102N 5743W to Newfoundland near 5047N 5708W. Sea ice
north of the ice edge.

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Grand Manan

Issued 03:00 AM ADT 10 May 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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 10 May 2026 Today Tonight and Monday At 3:00 a.m. ADT today departing ridge located over the Grand Banks.

At 3:00 a.m. ADT today trough located over New England.
By 8:00 p.m. ADT tonight trough located on a line north-south over
New Brunswick.

At 10:00 a.m. ADT Monday trough located from Labrador to East
Scotian Slope.

Atlantic - Maritimes Area

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Marine Weather for Canada

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