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Gulf - Magdalen - northeastern half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 18 June 2026

Today Tonight and Friday.

Strong wind warning in effect.

Wind light increasing to southeast 15 knots this evening and to southeast 20 to 25 late overnight. Wind increasing to southeast 30 early Friday morning with gusts to 45 from Margaree Harbour to Bay St. Lawrence Friday morning and afternoon. Wind diminishing to southeast 20 Friday evening.

Periods of rain and fog patches Friday.

Waves

Issued 05:00 AM ADT 18 June 2026

Gulf - Magdalen - northern half

Today Tonight and Friday. Seas 1 metre or less building to 1 to 2 Friday morning and to 2 to 3 near noon Friday. Seas subsiding to 1 to 2 Friday evening.

Gulf - Magdalen - southern half

Today Tonight and Friday. Seas 1 metre or less building to 1 to 2 Friday morning then subsiding to 1 or less Friday afternoon.

Extended Forecast

Issued 03:00 AM ADT 18 June 2026
Saturday Wind variable 15 knots increasing to northeast 20 to 25 in the afternoon.
Sunday Wind northeast 15 to 20 knots diminishing to light.
Monday Wind light.

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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 - Quai de St-Jean 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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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 3:42 PM EDT 17 June 2026

Iceberg Limit

Iceberg limit at 0000 UTC 18 Jun estimated from Newfoundland near
4705N 5530W to 4235N 5105W to 4445N 4310W to 4945N 4335W to 5315N
4800W to 5900N 5500W to 5825N 5130W to 5615N 4850W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Gulf - Magdalen - northeastern half

Issued 10:00 AM ADT 18 June 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 10:00 AM ADT 18 June 2026 Today Tonight and Friday At 10:00 a.m. ADT today low 1010 mb located over West Scotian Slope.
By 3:30 p.m. ADT today dissipating low 1010 mb located over East
Scotian Slope.

At 8:00 p.m. ADT tonight low 991 mb located near the Great Lakes.
By 8:00 p.m. ADT Friday low 994 mb located over New Brunswick.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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