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Gulf - Magdalen - southwestern half

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 21 March 2025

Tonight and Saturday.

Wind variable 10 to 15 knots becoming northeast 15 near midnight then increasing to northerly 25 early Saturday morning. Wind backing to northwest 30 near noon Saturday then diminishing to west 20 Saturday evening.

Showers changing to scattered flurries Saturday morning. Fog patches dissipating overnight. Visibility 1 mile or less in fog patches and in flurries.

Temperatures near zero.

Waves

Issued 05:00 PM ADT 21 March 2025
Tonight and Saturday. Seas 1 metre or less building to 1 to 2 late overnight and to 2 to 3 near noon Saturday. Seas subsiding to 1 to 2 Saturday evening.

Extended Forecast

Issued 03:30 PM ADT 21 March 2025
Sunday Wind variable 10 to 15 knots increasing to northwest 25 in the afternoon.
Monday Wind northwest 25 knots diminishing to light late in the day.
Tuesday Wind southeast 30 knots veering to southwest 20 to 25 late in the day.

Ice Forecast

Issued 10:00 AM EDT 21 March 2025 Today Tonight and Saturday Open water except 7 tenths first-year ice in the extreme southeastern section and in a few bays along the Prince Edward Island coast. Consolidated first-year ice along parts of the Prince Edward Island coast. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas Lake Nipissing - 45152 North Bay Airport Beauport Deschambault Île d'Orléans L'Assomption Trois-Rivières Airport L'Isle-aux-Grues Lac Saint-Pierre Montréal-Trudeau Int'l Airport Saint-Hubert Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Saint-Anicet Baie-Comeau Airport Cap-Rouge Île Rouge Pointe de l'Islet Pointe Claveau Sept-Îles Airport Pointe-des-Monts Pointe-Noire Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Île Bicquette Cap-Chat CFB Bagotville Jonquière Mistook Normandin Roberval Airport Bas Caraquet Bathurst Airport Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Kouchibouguac Miscou Island Greater Moncton Roméo LeBlanc Int'l Airport Point Lepreau Saint John Airport St. Stephen Brier Island Yarmouth Airport North Cape
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 21 March 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Nova Scotia near 4521N 6100W to 4549N 5906W
to Newfoundland near 4736N 5740W. Sea ice north and west of the ice
edge.

Ice Coverage

Open water except 7 tenths first-year ice in the extreme
southeastern section and in a few bays along the Prince Edward
Island coast. Consolidated first-year ice along parts of the Prince
Edward Island coast.

 

Iceberg Bulletin

Issued 3:41 PM EDT 21 March 2025

Iceberg Limit

Iceberg limit at 0000 UTC 22 Mar estimated from Newfoundland near
4643N 5307W to 4605N 4950W to 4630N 4450W to 5100N 4600W to 5400N
4700W to 5900N 5620W to 6110N 5505W to 5820N 4555W then eastwards.

Western iceberg limit at 0000 UTC 22 Mar estimated from Quebec near
5035N 5940W to Newfoundland near 4920N 5745W.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:30 PM ADT 21 March 2025 Tonight and Saturday At 3:30 p.m. ADT today low 990 mb located over the western Marine
District.
By 10:00 a.m. ADT Saturday low 984 mb located near Cabot Strait.

At 3:00 a.m. ADT Saturday low 989 mb located over Nova Scotia.
By 3:30 p.m. ADT Saturday low 985 mb located over southwestern
Newfoundland.

Marine Weather Statement

Issued 3:08 PM ADT 21 March 2025 A low pressure system approaching from the southwest marine district
this evening will track across Nova Scotia tonight then move into
Newfoundland later on Saturday. Strong to gale force west to
northwesterlies are expected behind this system.

Marine interests are advised that gale warnings are in effect for
Grand Manan, Lurcher, Browns Bank, Georges Bank, LaHave Bank, West
Scotian Slope, East Scotian Slope, Banquereau, Laurentian Fan, Cabot
Strait - northern half, and Gulf-Magdalen - northeastern half.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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