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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 20 May 2026

Today Tonight and Thursday.

Strong wind warning in effect.

Wind light increasing to southwest 10 to 15 knots early this morning and to southwest 20 to 25 this afternoon. Wind veering to northwest 20 this evening then diminishing to westerly 10 to 15 Thursday morning.

Scattered showers this evening. Fog patches dissipating this afternoon.

Waves

Issued 05:00 AM ADT 20 May 2026
Today Tonight and Thursday. Seas 1 metre or less building to 1 to 2 this morning then subsiding to 1 or less Thursday morning.

Extended Forecast

Issued 03:00 AM ADT 20 May 2026
Friday Wind northwest 15 knots backing to southwest 20 in the afternoon.
Saturday Wind light increasing to southwest 15 to 20 knots.
Sunday Wind light.

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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 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 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 20 May 2026 Today Tonight and Thursday At 3:00 a.m. ADT today warm front located on a line
northwest-southeast over Banquereau.
By 8:00 p.m. ADT tonight warm front located east of the Marine
District.

At 10:00 a.m. ADT today cold front located over Quebec.
By 3:00 a.m. ADT Thursday cold front located on a line
northeast-southwest over Nova Scotia.

At 3:30 p.m. ADT Thursday departing cold front located southeast
of the Marine District.

Marine Weather Statement

Issued 2:40 AM ADT 20 May 2026 A cold front over Quebec with track eastward across the Maritimes
today and tonight to lie southeast of the district by Thursday
afternoon. Strong southwest winds ahead of the front will veer to
strong to gale force northwest winds in its wake, over northern
waters.

Marine interests are advised that gale warnings are in effect for
Cabot Strait - northern half, Gulf-Magdalen - northeastern half and
Anticosti.

Atlantic - Maritimes Area

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Marine Weather for Canada

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