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Northumberland Strait - western half

Forecast

Marine Forecast

Issued 10:00 AM ADT 23 June 2025

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind light increasing to southeast 15 knots early this evening and to southerly 20 near midnight. Wind veering to southwest 15 to 20 Tuesday morning then to westerly 15 to 20 Tuesday evening.

Showers overnight and Tuesday morning with a risk of thunderstorms. Showers Tuesday late in the day. Fog patches.

Extended Forecast

Issued 03:00 AM ADT 23 June 2025
Wednesday Wind northwest 20 to 25 knots diminishing to northwest 15 in the afternoon.
Thursday Wind variable 10 to 15 knots.
Friday Wind northwest 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

Northumberland Strait - western half

Issued 10:00 AM ADT 23 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 10:00 AM ADT 23 June 2025 Today Tonight and Tuesday At 10:00 a.m. ADT today trough located from the Gulf of St. Lawrence
to Georges Bank.
By 8:00 p.m. ADT tonight weakening trough located from Newfoundland
to Laurentian Fan.

At 8:00 p.m. ADT tonight trough located near the Great Lakes.
By 8:00 p.m. ADT Tuesday trough from 998 mb low located over
Labrador to Cape Cod.

St. Lawrence - St. Lawrence River Area

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