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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 18 April 2026

Today Tonight and Sunday.

Strong wind warning in effect.

Wind easterly 10 to 15 knots increasing to northeast 15 to 20 this morning then diminishing to variable 10 to 15 this afternoon. Wind becoming southeast 15 this evening then veering to southwest 15 near noon Sunday. Wind increasing to south 20 to 25 Sunday evening.

Showers beginning overnight changing to rain Sunday evening. Fog patches forming overnight.

Waves

Issued 05:00 PM ADT 17 April 2026
Tonight and Saturday. Seas 1 metre or less building to 1 to 2 near noon Saturday then subsiding to 1 or less Saturday evening.

Extended Forecast

Issued 03:30 PM ADT 17 April 2026
Sunday Wind southerly 10 to 15 knots increasing to southerly 20 in the afternoon.
Monday Wind northwest 25 knots diminishing to light.
Tuesday Wind north 20 knots diminishing to light.

Ice Forecast

Issued 10:00 AM EDT 17 April 2026 Today Tonight and Saturday 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 17 April 2026 Today Tonight and Saturday

Ice Edge

First ice edge estimated from Cape Breton Island near 4621N 6025W to
4655N 6008W to 4742N 6124W to Gaspe Peninsula near 4846N 6410W. Sea
ice southwest of the ice edge.

Second ice edge estimated from Quebec near 4845N 6751W to 5005N
6507W to 4957N 6018W to Newfoundland near 4806N 5905W. 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 18 April 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 18 April 2026 Today Tonight and Sunday At 3:00 a.m. ADT today low 1012 mb located southwest of Georges
Bank.
By 3:00 a.m. ADT Sunday dissipating low located near Browns Bank.

At 3:00 a.m. ADT today ridge located over Quebec.
By 8:00 p.m. ADT tonight ridge located east of the Avalon Peninsula.

At 10:00 a.m. ADT Sunday trough located from Quebec to New England.
By 8:00 p.m. ADT Sunday trough located from Labrador to the Gulf
of Maine.

Marine Weather Statement

Issued 2:38 AM ADT 18 April 2026 A trough of low pressure extending from a low over Northern Quebec
will slowly approach the marine district tonight and Saturday.
Increasing southerly winds will reach strong to gale force across the
region ahead of the trough.

Marine interests are advised that a gale warning is in effect for
Cabot Strait - northern half.

Atlantic - Maritimes Area

Another Region

Marine Weather for Canada

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