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Northumberland Strait

Forecast

Marine Forecast

Issued 08:00 PM ADT 16 July 2025

Tonight and Thursday.

Wind southerly 10 to 15 knots except light over eastern sections. Wind becoming southwesterly 10 to 15 near midnight then increasing to south 15 to 20 early Thursday evening.

Extended Forecast

Issued 03:30 PM ADT 16 July 2025
Friday Wind southerly 20 to 25 knots becoming northwest 25 in the afternoon.
Saturday Wind northwest 15 to 20 knots backing to southwest 15 to 20.
Sunday Wind southwest 15 to 20 knots.

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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

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 16 July 2025 Tonight and Thursday At 8:00 p.m. ADT tonight low 1009 mb located over the St. Lawrence
River.
By 10:00 a.m. ADT Thursday weakening low 1011 mb located northeast
of the Marine District.

At 10:00 a.m. ADT Thursday low 1004 mb located near the Great Lakes.
By 8:00 p.m. ADT Thursday low 1000 mb located near the St. Lawrence
River.

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