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Cabot Strait

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 21 April 2025

Tonight and Tuesday.

Gale warning in effect.

Wind northwest 40 knots diminishing to northwest 30 late this afternoon and to northwest 20 after midnight. Wind diminishing to northwest 10 to 15 Tuesday morning and to light Tuesday evening.

Waves

Issued 05:00 AM ADT 21 April 2025
Today Tonight and Tuesday. Seas 5 to 7 metres subsiding to 3 to 5 this afternoon and to 2 to 3 this evening. Seas subsiding to 1 to 2 Tuesday morning and to 1 Tuesday evening.

Extended Forecast

Issued 03:30 PM ADT 21 April 2025
Wednesday Wind easterly 15 knots.
Thursday Wind light.
Friday Wind west 15 knots.

Ice Forecast

Issued 10:00 AM EDT 20 April 2025 Today Tonight and Monday Ice free. 

[ Canadian Ice Service ]

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Map of Atlantic - Maritimes marine weather areas Summerside Stephenville Airport North Cape Burgeo Pointe-des-Monts Port aux Basques Sagona Island St. Lawrence Tracadie Winterland Branch Hill Wreckhouse Halifax Harbour - 44258 LaHave Bank - 44150 Sept-Îles Airport Banquereau - 44139 Longue-Pointe-de-Mingan Île Rouge Île aux Perroquets Havre-Saint-Pierre Airport East Scotia Slope - 44137 Baie-Comeau Airport Mont-Joli Airport Rivière-la-Madeleine Saint John Airport Gaspé Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Heath Point Miscou Island Kouchibouguac Îles de la Madeleine Airport Kouchibouguac La Pocatière Grand Manan St. Stephen Fundy Park (Alma) New Carlisle Miramichi Pointe-au-Père Charlo Port Menier Bathurst Airport Île Bicquette Bas Caraquet Cap-Chat East Chedabucto Bay – 44488 West Chedabucto Bay – 44489 Lunenburg Charlottetown Airport Yarmouth Airport Pointe-Noire Western Head J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Nappan AAFC McNabs Island East Point Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island Cap-d'Espoir Beaver Island Baccaro Point
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 20 April 2025 Today Tonight and Monday

Ice Edge

First ice edge estimated from New Brunswick near 4700N 6449W to
4836N 6358W to Quebec near 4851N 6412W. Sea ice west of the ice
edge.

Second ice edge estimated from Quebec near 5013N 6023W to 4956N
5932W to Newfoundland near 5022N 5732W. Sea ice north of the ice
edge.

Ice Coverage

Ice free.

 

Iceberg Bulletin

Issued 2:30 PM EDT 21 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 21 Apr estimated from Newfoundland near
4731N 5444W to 4125N 5145W to 4155N 4755W to 4715N 3650W to 5415N
4450W to 5915N 5605W to 6035N 5500W to 5900N 4930W then eastwards.

Western iceberg limit at 0000 UTC 21 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Cabot Strait

Issued 3:30 PM ADT 21 April 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. 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 21 April 2025 Today Tonight and Tuesday At 10:00 a.m. ADT today low 980 mb located over eastern
Newfoundland.
By 3:00 a.m. ADT Tuesday departing low 980 mb located east of
Newfoundland.

At 3:30 p.m. ADT today ridge located from Quebec to the Gulf
of Maine.
By 3:30 p.m. ADT Tuesday ridge located from the Gulf of St. Lawrence
to East Scotian Slope.

Marine Weather Statement

Issued 3:19 PM ADT 21 April 2025 A low pressure system east of Newfoundland will continue tracking
eastward tonight. A ridge of high pressure will approach from the
west moving across the district tonight and Tuesday.

Strong to gale force northwesterlies over eastern waters will
continue to diminish through the night as the low moves eastward and
the ridge approaches.

Marine interests are advised that gale warnings are in effect for
Banquereau, Laurentian Fan and Cabot Strait.

Atlantic - Maritimes Area

Another Region

Marine Weather for Canada

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