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Anticosti - southwestern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 18 May 2026

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind northwest 25 knots with gusts to 35 in the Honguedo Strait. Wind becoming west 20 to 25 this afternoon then diminishing to west 15 this evening. Wind diminishing to light overnight then becoming southeast 15 Tuesday evening.

Periods of rain Tuesday evening.

Waves

Issued 05:00 AM ADT 18 May 2026

Anticosti - eastern half

Today Tonight and Tuesday. Seas 2 metres subsiding to 1 or less Tuesday morning.

Anticosti - western half

Today Tonight and Tuesday. Seas 2 to 3 metres subsiding to 1 to 2 this afternoon and to 1 or less near midnight.

Extended Forecast

Issued 03:00 AM ADT 18 May 2026
Wednesday Wind southeast 20 knots diminishing to variable 10 to 15 in the afternoon.
Thursday Wind variable 10 to 15 knots increasing to northwest 30.
Friday Wind northwest 20 knots backing to west 25.

Ice Forecast

Issued 10:00 AM EDT 17 May 2026 Today Tonight and Monday 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 May 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Quebec near 5108N 5835W to 5110N 5800W to
Quebec near 5125N 5736W. Sea ice north of the ice edge.

Ice Coverage

Ice free.

 

Iceberg Bulletin

Issued 2:46 PM EDT 17 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 18 May estimated from Newfoundland near
4700N 5520W to 4230N 5000W to 4230N 4800W to 4400N 4600W to 4845N
4335W to 5310N 4635W to 5550N 5010W to 5900N 5500W to 5955N 5310W to
5840N 4800W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti - southwestern half

Issued 03:00 AM ADT 18 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 18 May 2026 Today Tonight and Tuesday At 3:00 a.m. ADT today departing trough located over the southern
Marine District.

At 3:00 a.m. ADT today ridge located on a line north-south over
New England.
By 3:00 a.m. ADT Tuesday ridge located on a line north-south over
the eastern Marine District.

Marine Weather Statement

Issued 2:44 AM ADT 18 May 2026 Gale warnings are no longer in effect.

Atlantic - Maritimes Area

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Marine Weather for Canada

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