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Northumberland Strait

Forecast

Marine Forecast

Issued 03:00 AM ADT 05 May 2025

Today Tonight and Tuesday.

Strong wind warning in effect.

Wind northwest 15 knots becoming variable 10 to 15 early this afternoon then becoming southerly 15 near midnight. Wind increasing to south 20 Tuesday evening.

Extended Forecast

Issued 03:00 AM ADT 05 May 2025
Wednesday Wind southerly 15 to 20 knots.
Thursday Wind variable 15 to 20 knots becoming northerly 15 to 20.
Friday Wind north 15 knots.

Ice Forecast

Issued 10:00 AM EDT 4 May 2025 Today Tonight and Monday 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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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 4 May 2025 Today Tonight and Monday

Ice Edge

Ice edge estimated from Quebec near 5016N 6240W to 5001N 6213W to
4959N 6028W to 5034N 5831W to to Newfoundland near 5014N 5736W. Sea
ice north of the ice edge.

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Northumberland Strait

Issued 03:00 AM ADT 05 May 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 5 May 2025 Today Tonight and Tuesday At 3:00 a.m. ADT today trough located from Newfoundland to East
Scotian Slope.
By 10:00 a.m. ADT today departing trough located on a line
northeast-southwest over the Grand Banks.

At 3:00 a.m. ADT today ridge from 1029 mb high located from the
Gaspe Peninsula to West Scotian Slope.
By 8:00 p.m. ADT tonight ridge from 1035 mb high located over the
Marine District.

At 3:30 p.m. ADT Tuesday departing ridge from 1035 mb high located
over the southeastern Marine District.

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