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Anticosti - southeastern half

Forecast

Marine Forecast

Issued 10:00 AM ADT 10 March 2026

Today Tonight and Wednesday.

Wind southwest 30 knots except light along the Quebec coast. Wind diminishing to west 20 to 25 near noon then veering to northwest 15 to 20 this evening. Wind veering to north 20 late overnight then diminishing to light near noon Wednesday. Wind becoming east 15 Wednesday evening.

Snow tonight Wednesday afternoon and evening. Visibility 1 mile or less in snow.

Risk of freezing spray Wednesday morning.

Temperatures plus 3 falling to minus 10 near noon Wednesday.

Waves

Issued 05:00 AM ADT 10 March 2026
Today Tonight and Wednesday. Over open water seas 2 to 3 metres subsiding to 1 to 2 near noon and to 1 or less near midnight.

Extended Forecast

Issued 03:00 AM ADT 10 March 2026
Thursday Wind easterly 35 knots.
Friday Wind west 35 knots.
Saturday Wind westerly 25 knots increasing to east 30 late in the day.

Ice Forecast

Issued 10:00 AM EDT 10 March 2026 Today Tonight and Wednesday Open water except 5 tenths grey-white ice including 1 tenth first-year ice in the southwestern section. Consolidated first-year ice along parts of the coasts. 

[ Canadian Ice Service ]

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Weather Conditions

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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 10 March 2026 Today Tonight and Wednesday

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 5 tenths grey-white ice including 1 tenth
first-year ice in the southwestern section. Consolidated first-year
ice along parts of the coasts.

 

Iceberg Bulletin

Issued 3:08 PM EDT 9 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 10 Mar estimated from Newfoundland near
4640N 5310W to 4520N 4930W to 4555N 4410W to 4815N 4300W to 5930N
5700W to 6150N 5400W to 5850N 5035W to 5810N 4530W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 10 March 2026 Today Tonight and Wednesday At 10:00 a.m. ADT today departing trough located over the eastern
Quebec Lower North Shore.

At 8:00 p.m. ADT tonight building high located over Quebec.
By 8:00 p.m. ADT Wednesday departing ridge from high located from
Labrador to Newfoundland.

At 8:00 p.m. ADT tonight approaching low located west of the
Maritimes.

Marine Weather Statement

Issued 9:48 AM ADT 10 March 2026 A departing trough of low pressure will pass just north of the marine
district this morning. Strong to gale force winds ahead of the trough
are expected to diminish through the day as it pulls away and a weak
ridge builds into the district.

Marine interests are advised that a gale warning is in effect for
Anticosti - northwestern half.

St. Lawrence - St. Lawrence River Area

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