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Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 15 May 2025

Today Tonight and Friday.

Wind southwest 10 to 15 knots diminishing to light this morning. Wind light tonight and Friday.

Showers tonight. Fog banks forming early this morning.

Waves

Issued 05:00 AM ADT 15 May 2025
Today Tonight and Friday. Seas 1 metre or less building to 1 to 2 late overnight.

Extended Forecast

Issued 03:00 AM ADT 15 May 2025
Saturday Wind southeast 15 to 20 knots.
Sunday Wind southeast 20 knots becoming west 15 to 20.
Monday Wind northwest 25 to 30 knots.

Ice Forecast

Issued 10:00 AM EDT 14 May 2025 Today Tonight and Thursday Ice free. 

[ 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 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 14 May 2025 Today Tonight and Thursday

Ice Edge

Ice edge is outside the forecast region.

Ice Coverage

Ice free.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 15 May 2025 Today Tonight and Friday At 3:00 a.m. ADT today departing trough located over Newfoundland.

At 3:30 p.m. ADT today trough located southwest of the Marine
District.
By 3:30 p.m. ADT Friday trough located over Laurentian Fan.

St. Lawrence - St. Lawrence River Area

Another Region

Marine Weather for Canada

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