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Cabot Strait - southern half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 22 March 2025

Today Tonight and Sunday.

Wind southwesterly 20 knots increasing to northwest 30 this afternoon with gusts to 50 along the coast. Wind diminishing to west 25 near midnight and to southwest 15 Sunday morning. Wind increasing to northwest 25 Sunday evening.

Showers and fog patches ending this afternoon. Flurries Sunday evening.

Waves

Issued 05:00 AM ADT 22 March 2025
Today Tonight and Sunday. Seas 1 to 2 metres building to 2 to 3 early this evening then subsiding to 1 to 2 late overnight.

Extended Forecast

Issued 03:00 AM ADT 22 March 2025
Monday Wind northwest 25 knots diminishing to northwest 15 in the afternoon.
Tuesday Wind southeast 20 knots increasing to southeast 35.
Wednesday Wind southwest 15 to 20 knots.

Ice Forecast

Issued 10:00 AM EDT 21 March 2025 Today Tonight and Saturday Open water except 2 tenths first-year ice in the northern section. 

[ Canadian Ice Service ]

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Map of Atlantic - Maritimes marine weather areas East Scotia Slope - 44137 Banquereau - 44139 LaHave Bank - 44150 Halifax Harbour - 44258 East Chedabucto Bay – 44488 West Chedabucto Bay – 44489 Baie-Comeau Airport Havre-Saint-Pierre Airport Île aux Perroquets Île Rouge Longue-Pointe-de-Mingan Sept-Îles Airport Pointe-des-Monts Pointe-Noire Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport Heath Point Îles de la Madeleine Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier Île Bicquette Cap-Chat 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 Baccaro Point Beaver Island Brier Island Caribou Point Debert Eskasoni (First Nations) Grand Étang CFB Greenwood Hart Island Ingonish Beach Kentville AAFC Lunenburg McNabs Island Nappan AAFC North Mountain Parrsboro Sable Island St.Paul Island Shearwater Airport J.A. Douglas McCurdy Sydney Airport Tracadie Western Head Yarmouth Airport Charlottetown Airport East Point North Cape Summerside Burgeo Port aux Basques Sagona Island St. Lawrence Stephenville Airport Winterland Branch Hill Wreckhouse
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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 2 tenths first-year ice in the northern section.

 

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 10:00 AM ADT 22 March 2025 Today Tonight and Sunday At 10:00 a.m. ADT today low 985 mb located over the Gulf of
St. Lawrence.
By 3:00 a.m. ADT Sunday departing low 978 mb located northeast
of Newfoundland.

At 8:00 p.m. ADT tonight approaching trough located over New
England.

Marine Weather Statement

Issued 9:47 AM ADT 22 March 2025 A low pressure system over the Gulf of St. Lawrence will continue to
move northeast today and depart the district tonight. Strong to gale
force west to northwesterlies are expected behind this system.

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

Atlantic - Maritimes Area

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Marine Weather for Canada

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