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Forecast

Marine Forecast

Issued 03:00 AM AST 17 November 2025

Today Tonight and Tuesday.

Gale warning in effect.

Wind westerly 35 knots diminishing to northwest 25 this evening and to northwest 15 Tuesday evening.

Scattered showers ending this evening.

Waves

Issued 05:00 PM AST 16 November 2025
Tonight and Monday. Seas 2 to 3 metres building to 3 to 4 early Monday morning.

Extended Forecast

Issued 03:00 AM AST 17 November 2025
Wednesday Wind west 15 knots.
Thursday Wind light.
Friday Wind south 15 knots increasing to southwest 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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Ice Conditions

Ice Forecasts

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

Warnings (In effect)

Gale warning in effect

Lurcher

Issued 03:00 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 3:00 AM AST 17 November 2025 Today Tonight and Tuesday At 3:00 a.m. AST today low 973 mb located over the western Gulf
of St. Lawrence.
By 3:00 a.m. AST Tuesday low 980 mb located over the eastern Gulf
of St. Lawrence.

Marine Weather Statement

Issued 2:50 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. Gale force northeasterlies to the north of the low
and southerlies east of the low will give way to strong to gale force
westerlies over all waters as the low progresses eastward.

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

St. Lawrence - St. Lawrence River Area

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