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Anticosti

Forecast

Marine Forecast

Issued 03:30 PM ADT 26 April 2025

Tonight and Sunday.

Strong wind warning in effect.

Wind east 15 knots except light over eastern sections. Wind increasing to east 20 to 25 early this evening and to easterly 25 to 30 near midnight. Wind backing to northeasterly 20 to 25 near noon Sunday.

Periods of rain and fog patches.

Waves

Issued 05:00 PM ADT 26 April 2025

Anticosti - northern half

Tonight and Sunday. Seas 1 metre or less building to 1 to 2 late overnight and to 2 to 3 Sunday morning. Seas subsiding to 1 to 2 Sunday evening.

Anticosti - southern half

Tonight and Sunday. Seas 1 metre or less building to 1 to 2 this evening and to 2 to 3 late overnight. Seas subsiding to 1 to 2 Sunday afternoon.

Extended Forecast

Issued 03:30 PM ADT 26 April 2025
Monday Wind northerly 30 knots diminishing to northerly 15 to 20 in the afternoon and to light late in the day.
Tuesday Wind southwest 15 to 20 knots increasing to southwest 25.
Wednesday Wind south 25 knots increasing to northwest 30.

Ice Forecast

Issued 10:00 AM EDT 26 April 2025 Today Tonight and Sunday Open water except 1 tenth first-year ice in strips and patches near Gaspe. Consolidated rotten first-year ice in a few bays. 

[ Canadian Ice Service ]

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Weather Conditions

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Saint-Hubert Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac La Pocatière
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 26 April 2025 Today Tonight and Sunday

Ice Edge

First ice edge estimated from Quebec near 4832N 6412W to 4835N 6404W
to 4844N 6402W to Quebec near 4851N 6412W. Sea ice west of the ice
edge.

Second ice edge estimated from Quebec near 5011N 6057W to 4955N
6023W to 5107N 5730W to Newfoundland near 5029N 5728W. Sea ice north
then east of the ice edge.

Ice Coverage

Open water except 1 tenth first-year ice in strips and patches near
Gaspe. Consolidated rotten first-year ice in a few bays.

 

Iceberg Bulletin

Issued 2:30 PM EDT 26 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 27 Apr estimated from Newfoundland near
4723N 5503W to 4040N 5210W to 4100N 4720W to 4655N 3430W to 5355N
4530W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.

Western iceberg limit at 0000 UTC 27 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.

Iceberg Count

No confirmed icebergs except less than 10 icebergs northeast of the
western iceberg limit.
Warnings

Warnings (In effect)

Strong wind warning in effect

Anticosti

Issued 3:30 PM ADT 26 April 2025

'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 3:30 PM ADT 26 April 2025 Tonight and Sunday At 3:30 p.m. ADT today low 1006 mb located west of New Brunswick.
By 10:00 a.m. ADT Sunday low 1003 mb located over the Maritimes.

At 8:00 p.m. ADT Sunday low 1003 mb located near Lurcher.

At 3:30 p.m. ADT today departing ridge located over the eastern
Marine District.

Marine Weather Statement

Issued 3:18 PM ADT 26 April 2025 A low pressure system west of the Maritimes will slowly Progress
eastward tonight and Sunday. Increasing southerly winds ahead of the
system will reach strong to gale force across the marine district.

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

St. Lawrence - St. Lawrence River Area

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