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Forecast

Marine Forecast

Issued 03:30 PM ADT 07 May 2025

Tonight and Thursday.

Wind southwest 15 to 20 knots diminishing to light this evening then increasing to southwest 10 to 15 early Thursday morning. Wind increasing to northeast 15 to 20 Thursday evening.

Showers ending near midnight with a risk of thunderstorms. Fog patches dissipating Thursday evening.

Waves

Issued 05:00 AM ADT 07 May 2025
Today Tonight and Thursday. Seas 1 metre or less.

Extended Forecast

Issued 03:30 PM ADT 07 May 2025
Friday Wind northeast 20 to 25 knots.
Saturday Wind northeast 25 knots diminishing to northwest 15.
Sunday Wind northwest 20 knots.

Ice Forecast

Issued 10:00 AM EDT 7 May 2025 Today Tonight and Thursday Ice free. 

[ Canadian Ice Service ]

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Weather Conditions

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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 7 May 2025 Today Tonight and Thursday

Ice Edge

Ice edge estimated from Quebec near 5012N 6037W to 4957N 6013W to 5042N 5828W to Newfoundland near 5042N 5725W. Sea ice north of the ice edge.

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM ADT 7 May 2025 Tonight and Thursday At 3:30 p.m. ADT today trough located from the Strait of Belle
Isle to New England.
By 10:00 a.m. ADT Thursday trough located from Newfoundland to
the Gulf of Maine.

Marine Weather Statement

Issued 3:04 PM ADT 7 May 2025 A trough of low pressure is slowly tracking across the district.
Strong southerly winds ahead of the trough will back to strong to
gale force northeast winds north of the trough on Thursday.

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

St. Lawrence - St. Lawrence River Area

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