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Gulf - Magdalen - northeastern half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM AST 06 March 2026

Tonight and Saturday.

Gale warning in effect.

Wind light increasing to south 15 knots late overnight and to south 25 Saturday morning. Wind increasing to southwesterly 35 early Saturday evening.

Periods of rain Saturday late in the day.

Freezing spray warning in effect.

Over open water freezing spray near noon Saturday.

Temperatures minus 8 rising to plus 2 Saturday evening.

Waves

Issued 05:00 PM AST 06 March 2026
Tonight and Saturday. Over open water seas 1 metre or less building to 1 to 2 early Saturday morning and to 2 to 3 Saturday afternoon. Seas building to 3 to 4 Saturday evening.

Extended Forecast

Issued 03:30 PM AST 06 March 2026
Sunday Wind southwest 25 to 35 knots diminishing to northwest 20 in the afternoon.
Monday Wind southwest 20 knots.
Tuesday Wind southwest 30 knots diminishing to northwest 20.

Ice Forecast

Issued 10:00 AM EST 6 March 2026 Today Tonight and Saturday 6 tenths grey ice including 1 tenth first-year ice except 9 tenths grey-white ice including 3 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 6 March 2026 Today Tonight and Saturday

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
grey-white ice including 3 tenths first-year ice along the Cape
Breton Island coast. Consolidated first-year ice along parts of the
coasts.

 

Iceberg Bulletin

Issued 1:46 PM EST 6 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 7 Mar estimated from Newfoundland near
4640N 5310W to 4455N 4955W to 4545N 4525W to 4820N 4140W 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 8:00 PM AST 06 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.

Freezing spray warning in effect

Gulf - Magdalen - northeastern half

Issued 8:00 PM AST 06 March 2026

Moderate or severe freezing spray is occurring or expected to occur in this marine area. 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 8:00 PM AST 6 March 2026 Tonight and Saturday At 8:00 p.m. AST tonight low located south of West Scotian Slope.
By 3:30 p.m. AST Saturday dissipating low located south of East
Scotian Slope.

At 10:00 a.m. AST Saturday low 997 mb located over Ontario.
By 8:00 p.m. AST Saturday approaching low 987 mb located northwest
of the Maritimes.

Marine Weather Statement

Issued 7:50 PM AST 6 March 2026 A low pressure system south of West Scotian Slope will track eastward
tonight before dissipating on Saturday. Strong to gale force easterly
winds north of the low will diminish on Saturday.

Another low will approach the Maritimes from the west later in the
day Saturday. Strong to gale force southerly winds are forecast to
develop late in the day over northern waters.

Marine interests are advised that gale warnings are in effect for
Georges Bank, West Scotian Slope, Cabot Strait - northern half,
Gulf-Magdalen - northeastern half and Anticosti - southeastern half.

Marine interests are also advised that freezing spray warnings are in
effect for Gulf-Magdalen - northeastern half and Anticosti -
southeastern half.

St. Lawrence - St. Lawrence River Area

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