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Grand Manan

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 18 April 2026

Tonight and Sunday.

Strong wind warning in effect.

Wind easterly 15 knots becoming southwest 15 near noon Sunday then increasing to south 20 to 25 early Sunday evening.

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

Waves

Issued 05:00 PM ADT 18 April 2026
Tonight and Sunday. Seas 1 metre or less building to 1 to 2 Sunday evening.

Extended Forecast

Issued 03:30 PM ADT 18 April 2026
Monday Wind northwest 25 knots diminishing to westerly 15 in the afternoon.
Tuesday Wind north 15 to 20 knots diminishing to light.
Wednesday Wind light becoming southwest 15 knots.

Ice Forecast

Issued 10:00 AM EDT 18 April 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 18 April 2026 Today Tonight and Sunday

Ice Edge

First ice edge estimated from Cape Breton Island near 4702N 6025W to
4745N 6115W to Gaspe Peninsula near 4846N 6410W. Sea ice southwest
of the ice edge.

Second ice edge estimated from Quebec near 4838N 6811W to 5005N
6600W to 4945N 6015W 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 8:00 PM 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 8:00 PM ADT 18 April 2026 Tonight and Sunday At 8:00 p.m. ADT tonight low 1014 mb located west of Georges Bank.
By 3:00 a.m. ADT Sunday dissipating low located near Browns Bank.

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.

At 8:00 p.m. ADT tonight departing ridge located over the Grand
Banks.

Marine Weather Statement

Issued 7:48 PM ADT 18 April 2026 A trough of low pressure extending from a low over Northern Quebec
will slowly approach the marine district tonight and Sunday.
Increasing southerly winds will reach strong to gale force across the
region ahead of the trough on Sunday.

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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