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Anticosti

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 24 April 2025

Today Tonight and Friday.

Wind light today tonight and Friday.

Temperatures near plus 1.

Waves

Issued 05:00 PM ADT 23 April 2025
Tonight and Thursday. Seas 1 metre or less.

Extended Forecast

Issued 03:00 AM ADT 24 April 2025
Saturday Wind light increasing to southeast 20 knots in the afternoon.
Sunday Wind southeast 20 knots increasing to north 25 to 30.
Monday Wind northerly 25 knots.

Ice Forecast

Issued 10:00 AM EDT 23 April 2025 Today Tonight and Thursday 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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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 23 April 2025 Today Tonight and Thursday

Ice Edge

First ice edge estimated from New Brunswick near 4700N 6449W to
4836N 6358W 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 23 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 24 Apr estimated from Newfoundland near
4731N 5444W to 4105N 5205W to 4125N 4740W to 4720N 3525W to 5355N
4530W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.

Western iceberg limit at 0000 UTC 24 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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 24 April 2025 Today Tonight and Friday At 3:00 a.m. ADT today low 1014 mb located north of Banquereau.
By 3:30 p.m. ADT today departing low 1012 mb located over the
Grand Banks.

At 10:00 a.m. ADT today ridge located west of the Marine District.
By 10:00 a.m. ADT Friday ridge located over the eastern Marine
District.

At 3:00 a.m. ADT Friday trough located over New England.
By 3:30 p.m. ADT Friday weakening trough located over the Maritimes.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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