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Gulf - Magdalen - northeastern half

Warnings

Forecast

Marine Forecast

Issued 03:30 PM AST 07 March 2026

Tonight and Sunday.

Gale warning in effect.

Wind south 25 knots increasing to southwesterly 35 this evening then diminishing to southwest 25 Sunday morning. Wind diminishing to variable 15 early Sunday afternoon and to light Sunday evening.

Scattered showers tonight and Sunday. Fog patches forming after midnight and dissipating Sunday evening.

Temperatures minus 2 rising to plus 3 overnight.

Waves

Issued 05:00 PM AST 07 March 2026
Tonight and Sunday. Over open water seas 2 to 3 metres building to 3 to 4 this evening then subsiding to 2 to 3 Sunday morning. Seas subsiding to 1 to 2 Sunday afternoon.

Extended Forecast

Issued 03:30 PM AST 07 March 2026
Monday Wind southwest 20 knots increasing to southwest 30 late in the day.
Tuesday Wind westerly 25 to 30 knots diminishing to variable 10 to 15.
Wednesday Wind northeasterly 20 knots.

Ice Forecast

Issued 10:00 AM EST 7 March 2026 Today Tonight and Sunday 6 tenths grey ice including 1 tenth first-year ice except 9 tenths first-year ice along the Cape Breton Island coast. 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 7 March 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4549N 5807W to 4708N 5834W to 4630N 5615W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

6 tenths grey ice including 1 tenth first-year ice except 9 tenths
first-year ice along the Cape Breton Island coast. Consolidated
first-year ice along parts of the coasts.

 

Iceberg Bulletin

Issued 1:30 PM EST 7 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 8 Mar estimated from Newfoundland near
4640N 5310W to 4510N 4930W to 4540N 4345W to 4820N 4140W to 5210N
4630W to 5930N 5700W to 6150N 5400W to 5850N 5035W to 5810N 4530W
then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Gulf - Magdalen - northeastern half

Issued 3:30 PM AST 07 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM AST 7 March 2026 Tonight and Sunday At 3:30 p.m. AST today dissipating low located south of East
Scotian Slope.

At 8:00 p.m. AST tonight trough located over Quebec.
By 3:30 p.m. ADT Sunday trough located over the Gulf of
St. Lawrence.

Marine Weather Statement

Issued 3:15 PM AST 7 March 2026 A trough of low pressure approaching from the west tonight will come
to lie over the Gulf of St. Lawrence tomorrow afternoon. Winds will
increase to strong to gale force southwesterlies ahead of the trough.

Marine interests are advised that gale warnings are in effect for
Banquereau northern half, Cabot Strait, Gulf-Magdalen - northeastern
half and Anticosti - southeastern half.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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