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Marine Forecast

Issued 10:00 AM ADT 17 July 2025

Today Tonight and Friday.

Strong wind warning in effect.

Wind southerly 10 to 15 knots increasing to southwesterly 20 early this evening then diminishing to west 15 early Friday morning. Wind increasing to northwest 20 near noon Friday then diminishing to northwest 10 to 15 Friday evening.

Showers ending near midnight with a risk of thunderstorms. Fog patches dissipating Friday morning.

Waves

Issued 05:00 AM ADT 17 July 2025
Today Tonight and Friday. Seas 1 metre or less building to 1 to 2 this evening.

Extended Forecast

Issued 03:00 AM ADT 17 July 2025
Saturday Wind light becoming southwest 10 to 15 knots in the afternoon.
Sunday Wind southwest 10 to 15 knots.
Monday Wind northeast 10 to 15 knots diminishing to light.

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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 Saint-Hubert 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)

Strong wind warning in effect

Lurcher

Issued 10:00 AM ADT 17 July 2025

'Strong' winds of 20 to 33 knots are 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 10:00 AM ADT 17 July 2025 Today Tonight and Friday At 10:00 a.m. ADT today low 1003 mb located near the Great Lakes.
By 3:00 a.m. ADT Friday low 995 mb located over the St. Lawrence
River.

At 8:00 p.m. ADT Friday low 988 mb located over Labrador.

Marine Weather Statement

Issued 9:51 AM ADT 17 July 2025 A low pressure system over the Great Lakes will intensify as is
tracks northeastward along the St. Lawrence River tonight to lie over
Labrador on Friday. Strong southerly winds will veer to strong to
gale force westerly winds on Friday in the wake of the system before
diminishing Friday night.

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

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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