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Northumberland Strait - western half

Forecast

Marine Forecast

Issued 03:00 AM ADT 15 May 2026

Today Tonight and Saturday.

Strong wind warning in effect.

Wind east 15 knots increasing to northeast 20 early this morning then diminishing to north 15 early this evening. Wind backing to west 15 after midnight then becoming variable 10 to 15 Saturday morning. Wind increasing to southwest 20 Saturday afternoon.

Scattered showers today and this evening.

Extended Forecast

Issued 03:00 AM ADT 15 May 2026
Sunday Wind west 25 knots increasing to northwest 35 late in the day.
Monday Wind northwest 25 knots diminishing to variable 10 to 15 late in the day.
Tuesday Wind variable 15 to 20 knots.

Ice Forecast

Issued 10:00 AM EDT 14 May 2026 Today Tonight and Friday 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 14 May 2026 Today Tonight and Friday

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 03:00 AM ADT 15 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 3:00 AM ADT 15 May 2026 Today Tonight and Saturday At 3:00 a.m. ADT today low 996 mb located west of Sable Island.
By 10:00 a.m. ADT today low 998 mb located south of Cape Breton
Island.

At 8:00 p.m. ADT tonight quasi-stationary low 1000 mb located east
of Cape Breton Island.

Marine Weather Statement

Issued 2:48 AM ADT 15 May 2026 A low pressure system west of Sable Island will track northeastward
today to lie east of Cape Breton Island by this evening. Strong to
gale force easterly winds north of the low shift to strong to gale
force southerlies to its south.

Marine interests are advised that gale warnings are in effect for
southwestern shore, LaHave Bank, eastern shore, Sable, East Scotian
Slope - southwestern half, Fourchu, Banquereau, Laurentian Fan, Cabot
Strait and Gulf-Magdalen - southeastern half.

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