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Anticosti

Warnings

Forecast

Marine Forecast

Issued 03:30 PM AST 18 February 2026

Tonight and Thursday.

Wind easterly 15 knots backing to northerly 15 this evening then increasing to northwest 25 late Thursday morning with gusts to 35 in the Honguedo Strait.

Periods of snow ending after midnight. Visibility as low as 1 mile in snow.

A risk of freezing spray over southeastern sections Thursday late in the day.

Temperatures near minus 3.

Waves

Issued 05:00 PM AST 18 February 2026
Tonight and Thursday. Over open water seas 1 metre or less building to 1 to 2 early this evening.

Extended Forecast

Issued 03:30 PM AST 18 February 2026
Friday Wind northwest 25 knots.
Saturday Wind northerly 25 knots.
Sunday Wind north 20 knots.

Ice Forecast

Issued 10:00 AM EST 18 February 2026 Today Tonight and Thursday 1 tenth grey ice except 5 tenths grey-white ice including 1 tenth first-year ice in the Honguedo Strait. Consolidated first-year ice along parts of the coasts. 

[ 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 EST 18 February 2026 Today Tonight and Thursday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4600N 5845W to 4715N 5915W to 4630N 5615W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

1 tenth grey ice except 5 tenths grey-white ice including 1 tenth
first-year ice in the Honguedo Strait. Consolidated first-year ice
along parts of the coasts.

 

Iceberg Bulletin

Issued 1:30 PM EST 18 February 2026

Iceberg Limit

Iceberg limit at 0000 UTC 19 Feb estimated from Newfoundland near
4640N 5310W to 4605N 4810W to 4740N 4525W to 5105N 4835W to 5930N
5700W to 6240N 5400W to 6005N 4950W to 5840N 4505W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM AST 18 February 2026 Tonight and Thursday At 3:30 p.m. AST today trough located from New Brunswick to
Nova Scotia.
By 3:00 a.m. AST Thursday dissipating trough located over the
eastern Marine District.

At 3:30 p.m. AST Thursday ridge located west of the Marine District.

Marine Weather Statement

Issued 3:17 PM AST 18 February 2026 Marine interests are advised that gale warnings are ended.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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