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Gulf - Magdalen

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 10 March 2026

Today Tonight and Wednesday.

Wind westerly 20 knots diminishing to variable 15 this afternoon then increasing to northerly 20 this evening. Wind veering to northeast 15 near noon Wednesday then increasing to easterly 25 Wednesday evening.

Snow over northern sections this evening. Snow near midnight. Snow Wednesday late in the day. Visibility 1 mile or less in snow.

Risk of freezing spray Wednesday evening.

Temperatures plus 3 falling to minus 7 near noon Wednesday.

Waves

Issued 05:00 AM ADT 10 March 2026

Gulf - Magdalen - northeastern half

Today Tonight and Wednesday. Over open water seas 2 to 3 metres subsiding to 1 to 2 near noon and to 1 or less early this evening.

Gulf - Magdalen - southwestern half

Today Tonight and Wednesday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM ADT 10 March 2026
Thursday Wind easterly 35 knots becoming southwest 35 in the afternoon.
Friday Wind westerly 35 knots.
Saturday Wind westerly 35 knots becoming east 30 to 40 late in the day.

Ice Forecast

Issued 10:00 AM EDT 10 March 2026 Today Tonight and Wednesday 7 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 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

7 tenths grey-white ice including 3 tenths first-year ice.
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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Marine Weather for Canada

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