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Northumberland Strait - western half

Forecast

Marine Forecast

Issued 08:00 PM ADT 16 May 2026

Tonight and Sunday.

Strong wind warning in effect.

Wind southwest 15 to 20 knots veering to northwest 25 Sunday afternoon.

Extended Forecast

Issued 03:30 PM ADT 16 May 2026
Monday Wind northwest 25 knots diminishing to variable 10 to 15 late in the day.
Tuesday Wind variable 10 to 15 knots.
Wednesday Wind variable 10 to 15 knots.

Ice Forecast

Issued 10:00 AM EDT 16 May 2026 Today Tonight and Sunday 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 Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île d'Orléans Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 16 May 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Quebec near 5108N 5835W to 5104N 5812W to
5116N 5738W to Quebec near 5125N 5736W. Sea ice north of the ice
edge.

Ice Coverage

Ice free.

Warnings

Warnings (In effect)

Strong wind warning in effect

Northumberland Strait - western half

Issued 8:00 PM ADT 16 May 2026

'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 8:00 PM ADT 16 May 2026 Tonight and Sunday At 8:00 p.m. ADT tonight ridge located southwest of the Marine
District.
By 10:00 a.m. ADT Sunday ridge located southeast of the Marine
District.

At 3:00 a.m. ADT Sunday trough located over the St. Lawrence River.
By 8:00 p.m. ADT Sunday trough located over Newfoundland.

Marine Weather Statement

Issued 7:43 PM ADT 16 May 2026 A trough of low pressure will cross the marine district on Sunday.
Strong southwesterlies ahead of the trough will increase to strong to
gale force northwesterlies in its wake.

Marine interests are advised that gale warnings are in effect for
Gulf-Magdalen - northeastern half and Anticosti.

St. Lawrence - St. Lawrence River Area

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