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Anticosti

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 15 April 2026

Today Tonight and Thursday.

Wind northeast 15 to 20 knots becoming east 15 near noon then veering to southeast 10 to 15 early this evening except southeast 15 to 20 in the Honguedo Strait. Wind becoming variable 10 to 15 near midnight then increasing to southeast 15 to 20 Thursday evening.

Periods of rain or periods of freezing rain Thursday.

Temperatures minus 5 to minus 1 rising to zero this evening.

Waves

Issued 05:00 AM ADT 15 April 2026
Today Tonight and Thursday. Seas 1 to 2 metres becoming 1 or less early this evening except 1 to 2 over eastern sections.

Extended Forecast

Issued 03:00 AM ADT 15 April 2026
Friday Wind variable 10 to 15 knots increasing to northwest 15 to 20 in the afternoon.
Saturday Wind north 15 to 20 knots becoming southeast 20.
Sunday Wind south 25 knots.

Ice Forecast

Issued 10:00 AM EDT 14 April 2026 Today Tonight and Wednesday Open water. Consolidated rotten first-year ice in a few sheltered bays. 

[ Canadian Ice Service ]

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

Ice Forecasts

Issued 10:00 AM EDT 14 April 2026 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Cape Breton Island near 4607N 5949W to 4631N
5919W to 4844N 6156W to 4919N 6025W to Newfoundland near 4753N
5924W. Sea ice west then northeast 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 14 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 15 Apr estimated from Newfoundland near
4655N 5400W to 4455N 5135W to 4510N 4535W to 4630N 4415W to 5000N
4425W to 5305N 4755W to 5900N 5600W to 6015N 5245W to 5735N 4735W
then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 15 April 2026 Today Tonight and Thursday At 3:00 a.m. ADT today ridge located over the eastern Marine
District.
By 10:00 a.m. ADT today departing ridge located east of the Marine
District.

At 3:00 a.m. ADT today trough located over western Nova Scotia.
By 8:00 p.m. ADT tonight quasi-stationary trough located on a line
northwest-southeast over southwestern Laurentian Fan.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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