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Northumberland Strait - western half

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 17 May 2026

Tonight and Monday.

Strong wind warning in effect.

Wind northwest 25 to 30 knots diminishing to northwest 15 late overnight then becoming variable 10 to 15 near noon Monday.

Extended Forecast

Issued 03:30 PM ADT 17 May 2026
Tuesday Wind variable 10 to 15 knots.
Wednesday Wind southeasterly 15 knots becoming variable 10 to 15.
Thursday Wind variable 10 to 15 knots increasing to northwest 25.

Ice Forecast

Issued 10:00 AM EDT 17 May 2026 Today Tonight and Monday Ice free. 

[ Canadian Ice Service ]

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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 17 May 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Quebec near 5108N 5835W to 5110N 5800W 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 17 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 17 May 2026 Tonight and Monday At 8:00 p.m. ADT tonight trough located from Newfoundland to East
Scotian Slope.
By 3:00 a.m. ADT Monday departing trough located southeast of the
Marine District.

At 3:00 a.m. ADT Monday ridge located on a line north-south over
New England.
By 8:00 p.m. ADT Monday ridge located over the southern Marine
District.

Marine Weather Statement

Issued 7:23 PM ADT 17 May 2026 A trough of low pressure over southern waters will continue tracking
eastward across the district tonight. Strong southwest winds ahead of
the trough will veer to strong to gale force northwesterlies in its
wake before diminishing on Monday as a ridge approaches.

Marine interests are advised that a gale warning is in effect for
Gulf-Magdalen - northeastern half.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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