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Anticosti - western half

Forecast

Marine Forecast

Issued 10:00 AM AST 17 November 2025

Today Tonight and Tuesday.

Gale warning in effect.

Wind northeast 25 knots backing to northwest 25 early this evening then increasing to west 35 late overnight. Wind west 35 Tuesday.

Periods of rain ending this evening.

Waves

Issued 05:00 AM AST 17 November 2025
Today Tonight and Tuesday. Seas 3 to 4 metres subsiding to 2 to 3 near noon and to 1 to 2 this evening. Seas building to 2 to 3 after midnight.

Extended Forecast

Issued 03:00 AM AST 17 November 2025
Wednesday Wind west 30 knots.
Thursday Wind west 20 knots.
Friday Wind south 15 knots increasing to southeast 35.

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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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buoy Buoy
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 16 November 2025

Iceberg Limit

Iceberg limit at 0000 UTC 17 Nov estimated from Newfoundland near
5009N 5609W to 5030N 5030W to 5115N 4930W to 5430N 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 17 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 17 November 2025 Today Tonight and Tuesday At 10:00 a.m. AST today low 974 mb located over the western Gulf
of St. Lawrence.
By 3:00 a.m. AST Tuesday low 978 mb located over Labrador.

Marine Weather Statement

Issued 9:29 AM AST 17 November 2025 A low pressure system over the Western Gulf of St. Lawrence will
slowly track eastward today before moving northward into Labrador
Tuesday morning. Strong to gale force westerlies are forecast across
the marine district as the low progresses northward.

Marine interests are advised that gale warnings are in effect for all
waters except Northumberland Strait - western half. Gulf-Magdalen -
western half, Chaleur-Miscou and Anticosti - eastern half.

St. Lawrence - St. Lawrence River Area

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