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Northumberland Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 01 June 2025

Today Tonight and Monday.

Strong wind warning in effect.

Wind southerly 20 to 25 knots increasing to south 25 to 30 late this morning then veering to southwest 20 to 25 early this evening. Wind diminishing to southwest 15 overnight. Wind southwest 15 Monday.

Extended Forecast

Issued 03:00 AM ADT 01 June 2025
Tuesday Wind southwest 15 knots backing to southeast 10 to 15 late in the day.
Wednesday Wind light increasing to southerly 20 knots.
Thursday Wind southerly 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

Warnings (In effect)

Strong wind warning in effect

Northumberland Strait

Issued 03:00 AM ADT 01 June 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 3:00 AM ADT 1 June 2025 Today Tonight and Monday At 3:00 a.m. ADT today low 982 mb located over the St. Lawrence
River.
By 3:30 p.m. ADT Monday weakening low 1001 mb located over Labrador.

St. Lawrence - St. Lawrence River Area

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