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Anticosti - western half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 18 April 2026

Tonight and Sunday.

Strong wind warning in effect.

Wind southeast 20 to 25 knots with gusts to 35 in the Honguedo Strait. Wind becoming south 25 to 30 near midnight then veering to west 25 to 30 Sunday evening.

Showers Sunday morning and afternoon changing to rain. Fog patches forming Sunday morning.

Temperatures near plus 2.

Waves

Issued 05:00 PM ADT 18 April 2026
Tonight and Sunday. Seas 1 to 2 metres building to 2 to 3 early Sunday morning.

Extended Forecast

Issued 03:30 PM ADT 18 April 2026
Monday Wind south 15 to 20 knots increasing to west 30 in the morning.
Tuesday Wind west 15 to 20 knots diminishing to variable 10 to 15.
Wednesday Wind variable 10 to 15 knots.

Ice Forecast

Issued 10:00 AM EDT 18 April 2026 Today Tonight and Sunday Open water. Consolidated rotten first-year ice in a few sheltered bays. 

[ 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

Open water. Consolidated rotten first-year ice in a few sheltered
bays.

 

Iceberg Bulletin

Issued 2:30 PM EDT 18 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 19 Apr estimated from Newfoundland near
4655N 5400W to 4500N 5200W to 4440N 4710W to 4630N 4415W to 5000N
4425W to 5305N 4755W to 5900N 5500W to 6015N 5245W to 5830N 5000W
then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti - western half

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

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Marine Weather for Canada

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