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Northumberland Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM AST 19 February 2026

Today Tonight and Friday.

Wind northerly 15 knots backing to northwest 20 near midnight then diminishing to northwest 15 Friday morning. Wind increasing to northwest 20 Friday evening.

Periods of snow ending early this morning. Visibility as low as 1 mile in snow.

Temperatures minus 2 falling to minus 7 Friday evening.

Extended Forecast

Issued 03:00 AM AST 19 February 2026
Saturday Wind northerly 15 knots increasing to northerly 25 in the afternoon.
Sunday Wind north 20 knots.
Monday Wind northeast 15 knots increasing to east 25.

Ice Forecast

Issued 10:00 AM EST 18 February 2026 Today Tonight and Thursday 9 tenths grey-white ice including 3 tenths first-year ice. 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

9 tenths grey-white ice including 3 tenths first-year ice.
Consolidated first-year ice along parts of the coasts.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM AST 19 February 2026 Today Tonight and Friday At 3:30 p.m. AST today ridge located over New England.
By 3:30 p.m. AST Friday ridge located on a line northwest-southeast
over the central Marine District.

At 8:00 p.m. AST Friday intensifying low 999 mb located southwest
of Georges Bank.

Marine Weather Statement

Issued 2:24 AM AST 19 February 2026 A cold northwest flow will develop over northern and eastern waters
tonight and Friday. Freezing spray over open water is expected in
this northwest flow.

Marine interests are advised that freezing spray warnings are in
effect for Cabot Strait, Gulf-Magdalen - northeastern half and
Anticosti.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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