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Chaleur - Miscou - eastern half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM AST 04 December 2025

Tonight and Friday.

Gale warning in effect.

Wind northwest 35 knots increasing to northwest 45 early Friday morning then diminishing to northwest 30 Friday evening.

Flurries ending near noon Friday. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Moderate freezing spray beginning after midnight except severe Friday morning.

Temperatures plus 2 falling to minus 10 overnight then rising to minus 5 Friday afternoon.

Extended Forecast

Issued 03:30 PM AST 04 December 2025
Saturday Wind northwest 15 knots diminishing to light in the afternoon.
Sunday Wind light.
Monday Wind northwest 15 knots increasing to northwest 25.

Ice Forecast

Issued 10:00 AM EST 4 December 2025 Today Tonight and Friday Open water. 

[ Canadian Ice Service ]

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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 EST 4 December 2025 Today Tonight and Friday

Ice Edge

Ice edge estimated from Gaspe Peninsula near 4856N 6712W to 4956N
6635W to 4958N 6014W to Quebec near 5125N 5737W. Sea ice north of
the ice edge.

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

Chaleur - Miscou - eastern half

Issued 8:00 PM AST 04 December 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.

Freezing spray warning in effect

Chaleur - Miscou - eastern half

Issued 8:00 PM AST 04 December 2025

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 4 December 2025 Tonight and Friday At 8:00 p.m. AST tonight trough located from Labrador to Browns
Bank.
By 3:00 a.m. AST Friday trough located from the Quebec Lower North
Shore to Laurentian Fan.

At 3:30 p.m. AST Friday low 966 mb located east of Newfoundland.

At 3:30 p.m. AST Friday ridge located west of the Marine District.

Marine Weather Statement

Issued 2:37 AM AST 5 December 2025 An intensifying trough of low pressure extending from Labrador to
Browns Bank will move eastward to lie east of the marine district by
Friday morning. Gale to storm force northwesterlies will develop in
the wake of the trough.

Marine interests are advised that storm warnings are in effect for
Banquereau, Cabot Strait, Gulf-Magdalen - northeastern half, and
Anticosti - southeastern half. Gale warnings are in effect for all
remaining waters.

Marine interests are also advised that freezing spray warnings are in
effect for all waters except Georges Bank, West Scotian Slope, East
Scotian Slope, and Laurentian Fan.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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