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Gulf - Magdalen

Warnings

Forecast

Marine Forecast

Issued 08:00 PM ADT 17 August 2026

Tonight and Tuesday.

Strong wind warning in effect.

Wind southerly 25 to 30 knots veering to southwest 20 to 25 near midnight then diminishing to southwest 15 to 20 early Tuesday morning. Wind diminishing to light near noon Tuesday then becoming southerly 10 to 15 early Tuesday evening.

Showers ending Tuesday afternoon. Fog patches forming Tuesday morning.

Waves

Issued 05:00 PM ADT 17 August 2026

Gulf - Magdalen - northern half

Tonight and Tuesday. Seas 2 to 3 metres subsiding to 1 to 2 early Tuesday morning and to 1 or less Tuesday afternoon.

Gulf - Magdalen - southern half

Tonight and Tuesday. Seas 1 to 2 metres subsiding to 1 or less Tuesday morning.

Extended Forecast

Issued 03:30 PM ADT 17 August 2026
Wednesday Wind southeasterly 20 knots diminishing to variable 10 to 15 in the afternoon.
Thursday Wind variable 10 to 15 knots diminishing to light.
Friday Wind light becoming southerly 15 knots late in the day.

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Map of St. Lawrence - St. Lawrence River marine weather areas Grand Manan New Carlisle Pointe-au-Père Fundy Park (Alma) Port Menier Miramichi Île Bicquette Charlo Cap-Chat Bathurst Airport CFB Bagotville Jonquière Mistook Normandin Roberval Airport Île-d'Orléans - Quai de St-Jean Deschambault North Bay Airport Beauport L'Isle-aux-Grues Bas Caraquet Lake Nipissing - 45152 Pointe-des-Monts L'Assomption Baie-Comeau Airport Saint-Anicet Cap-Rouge Sainte-Anne-de-Bellevue Lac Memphrémagog Montréal Metropolitain Airport Île Rouge Montréal-Trudeau Int'l Airport Lac Saint-Pierre Trois-Rivières Airport Pointe de l'Islet Pointe Claveau Sept-Îles Airport Kouchibouguac 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 La Pocatière Miscou Island Mont-Joli Airport
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buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 19 May 2026 Forecasts have ended for the season.
 

Iceberg Bulletin

Issued 2:30 PM EDT 17 August 2026

Iceberg Limit

Iceberg limit at 0000 UTC 18 Aug estimated from Newfoundland near
4915N 5330W to 4940N 5320W to 5030N 5330W to 6000N 5600W to 6020N
5200W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Gulf - Magdalen

Issued 8:00 PM ADT 17 August 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.

Synopsis

Technical Marine Synopsis

Issued 8:00 PM ADT 17 August 2026 Tonight and Tuesday At 8:00 p.m. ADT tonight trough located from Quebec to Long Island.
By 3:00 a.m. ADT Tuesday weakening trough located from Labrador
to New England.

At 3:00 a.m. ADT Tuesday low 1011 mb located south of Cape Cod.
By 8:00 p.m. ADT Tuesday low 1008 mb located near Browns Bank.

At 8:00 p.m. ADT tonight quasi-stationary ridge located over the
southeastern Marine District.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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