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Gulf - Magdalen - southwestern half

Forecast

Marine Forecast

Issued 10:00 AM ADT 17 May 2026

Today Tonight and Monday.

Strong wind warning in effect.

Wind southwest 20 knots increasing to northwest 25 to 30 this afternoon then diminishing to northwest 15 late overnight. Wind becoming variable 10 to 15 near noon Monday.

Waves

Issued 05:00 AM ADT 17 May 2026
Today Tonight and Monday. Seas 1 to 2 metres subsiding to 1 or less Monday evening.

Extended Forecast

Issued 03:00 AM 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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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 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.

 

Iceberg Bulletin

Issued 3:24 PM EDT 16 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 17 May estimated from Newfoundland near
4700N 5520W to 4230N 5000W to 4230N 4800W to 4400N 4600W to 4845N
4335W to 5310N 4635W to 5550N 5010W to 5900N 5500W to 5955N 5310W to
5840N 4800W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Gulf - Magdalen - southwestern half

Issued 10:00 AM 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 10:00 AM ADT 17 May 2026 Today Tonight and Monday At 10:00 a.m. ADT today trough located from Anticosti Island to
the Gulf of Maine.
By 8:00 p.m. ADT tonight trough located from Newfoundland to West
Scotian Slope.

At 3:00 a.m. ADT Monday departing trough located southeast of the
Gulf of Maine.

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 9:48 AM ADT 17 May 2026 A trough of low pressure will track across the district today and
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 gale warnings are in effect for
Gulf-Magdalen - northeastern half and Anticosti.

St. Lawrence - St. Lawrence River Area

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