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Anticosti - northeastern half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM AST 11 November 2025

Tonight and Wednesday.

Gale warning in effect.

Wind northwest 20 knots increasing to west 45 near midnight then backing to southwesterly 35 early Wednesday morning. Wind diminishing to west 25 Wednesday evening.

Periods of rain changing to scattered showers or scattered flurries overnight then to scattered flurries Wednesday morning. Fog patches dissipating near midnight.

Waves

Issued 05:00 PM AST 11 November 2025

Anticosti - northwestern half

Tonight and Wednesday. Seas 2 to 3 metres building to 3 to 4 after midnight.

Anticosti - southeastern half

Tonight and Wednesday. Seas 1 to 2 metres building to 3 to 4 after midnight then subsiding to 2 to 3 Wednesday evening.

Extended Forecast

Issued 03:30 PM AST 11 November 2025
Thursday Wind variable 15 knots becoming north 15 in the afternoon.
Friday Wind north 15 knots backing to northwest 20.
Saturday Wind northwest 30 knots diminishing to northwest 20 late in the day.

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Map of St. Lawrence - St. Lawrence River marine weather areas Cap-Chat Mont-Joli Airport Bathurst Airport Île Bicquette Charlo Port Menier Miramichi Pointe-au-Père Fundy Park (Alma) New Carlisle Grand Manan Bas Caraquet CFB Bagotville Jonquière Mistook Normandin Roberval Airport Deschambault Beauport North Bay Airport Trois-Rivières Airport Lake Nipissing - 45152 Kouchibouguac Baie-Comeau Airport Île d'Orléans Saint-Anicet Sainte-Anne-de-Bellevue Cap-Rouge Lac Memphrémagog Montréal Metropolitain Airport Montréal-Trudeau Int'l Airport Île Rouge Lac Saint-Pierre L'Isle-aux-Grues L'Assomption Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts North Cape Pointe-Noire Yarmouth Airport Cap-d'Espoir Brier Island Rivière-la-Madeleine St. Stephen Gaspé Airport Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac La Pocatière
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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 26 May 2025 Forecasts have ended for the season.
 

Iceberg Bulletin

Issued 1:30 PM EST 11 November 2025

Iceberg Limit

Iceberg limit at 0000 UTC 12 Nov estimated from Newfoundland near
5026N 5623W to 5000N 4915W to 5045N 4745W to 5315N 4900W to 5945N
5730W to 6055N 5315W to 5950N 4955W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Anticosti - northeastern half

Issued 8:00 PM AST 11 November 2025

'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 8:00 PM AST 11 November 2025 Tonight and Wednesday At 8:00 p.m. AST tonight departing low 984 mb located over western
Labrador.

At 8:00 p.m. AST tonight trough from low located from Anticosti
Island to East Scotian Slope.
By 3:00 a.m. AST Wednesday trough located from Labrador to the
Grand Banks.

Marine Weather Statement

Issued 7:40 PM AST 11 November 2025 A departing low pressure system over Western Labrador, with an
intense trough to the south, will continue to track northeasterly as
the intensifying trough pushes eastward over the slope waters this
evening. Gale to storm force southerlies ahead of the trough, with
gale to storm force westerlies briefly developing in its wake.

Marine interests are advised that storm warnings are in effect for
eastern shore - eastern half, Sable - eastern half, East Scotian
Slope - eastern half, Fourchu, Banquereau - western half and
Laurentian Fan. Gale warnings are in effect for all remaining waters
except Fundy and Grand Manan.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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