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Anticosti - western half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM AST 18 November 2025

Today Tonight and Wednesday.

Gale warning in effect.

Wind west 25 to 30 knots increasing to west 35 early this afternoon then diminishing to west 25 to 30 near noon Wednesday.

Waves

Issued 05:00 AM AST 18 November 2025

Anticosti - northwestern half

Today Tonight and Wednesday. Seas 1 to 2 metres building to 2 to 3 near noon.

Anticosti - southeastern half

Today Tonight and Wednesday. Seas 2 metres.

Extended Forecast

Issued 03:00 AM AST 18 November 2025
Thursday Wind west 20 knots.
Friday Wind light increasing to southeast 25 knots.
Saturday Wind southeast 30 knots diminishing to west 25.

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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 17 November 2025

Iceberg Limit

Iceberg limit at 0000 UTC 18 Nov estimated from Newfoundland near
5009N 5609W to 5015N 5030W to 5100N 4915W to 5445N 5030W to 5945N
5730W to 6100N 5310W to 6000N 4940W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Anticosti - western half

Issued 10:00 AM AST 18 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 10:00 AM AST 18 November 2025 Today Tonight and Wednesday At 10:00 a.m. AST today low 974 mb located over Labrador.
By 8:00 p.m. AST Wednesday departing low 989 mb located north
of Labrador.

At 8:00 p.m. AST Wednesday approaching ridge located over New
England.

Marine Weather Statement

Issued 9:45 AM AST 18 November 2025 A low pressure system over Labrador will move very slowly north today
and Wednesday. Strong to gale force westerly winds are expected to
persist over Anticosti until late in the day on Wednesday in the wake
of the low.

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

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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