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Pointe-des-Monts to Anticosti - northern half

Warnings

Forecast

Marine Forecast

Issued 03:00 PM EDT 12 March 2026

Tonight and Friday.

Wind northeast 15 to 25 knots backing to northwest 20 to 30 near midnight then diminishing to northwest 10 to 20 Friday evening.

Snow ending near midnight. Visibility 1 mile or less in snow.

Risk of freezing spray.

Temperatures minus 5 falling to minus 11 Friday morning.

Waves

Issued 03:00 PM EDT 12 March 2026
Tonight and Friday. Over open water seas 1 to 2 metres.

Extended Forecast

Issued 06:00 PM EDT 12 March 2026
Saturday Wind northeast 15 to 25 knots increasing to northeast 25 to 35 in the morning.
Sunday Wind northeast 15 to 25 knots becoming westerly 15 to 25.
Monday Wind east 20 knots with gusts to 30 increasing to east 35 to 45.

Ice Forecast

Issued 10:00 AM EDT 12 March 2026 Today Tonight and Friday Open water except 1 tenth first-year ice in the extreme northern section and in the extreme southern section. Consolidated first-year ice along parts of the coast. 

[ 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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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 12 March 2026 Today Tonight and Friday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4603N 5814W to 4722N 5805W to 4643N 5628W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

Open water except 1 tenth first-year ice in the extreme northern
section and in the extreme southern section. Consolidated first-year
ice along parts of the coast.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 12 March 2026 Tonight and Friday At 3:00 p.m. EDT today low 994 mb located over the Gulf of
St. Lawrence.
By 8:00 p.m. EDT Friday low 963 mb located over Labrador Sea.

At 3:00 p.m. EDT today ridge located on a line north-south over
Ontario.
By 8:00 p.m. EDT Friday ridge located on a line northwest-southeast
over Rivière-du-Loup.

At 8:00 p.m. EDT Friday approaching low 993 mb located over
Lake Huron.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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