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Cabot Strait - northern half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM ADT 21 June 2025

Today Tonight and Sunday.

Gale warning in effect.

Wind west 35 knots diminishing to west 25 near noon then veering to northwest 15 to 20 this evening. Wind diminishing to light late overnight then becoming southeast 15 Sunday evening.

Scattered showers ending this afternoon. Scattered showers Sunday evening.

Waves

Issued 05:00 AM ADT 21 June 2025
Today Tonight and Sunday. Seas 2 to 3 metres subsiding to 1 to 2 this evening.

Extended Forecast

Issued 03:00 AM ADT 21 June 2025
Monday Wind variable 10 to 15 knots.
Tuesday Wind southwesterly 25 knots.
Wednesday Wind southwesterly 25 knots veering to northwest 30.

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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 26 May 2025 Forecasts have ended for the season.
 

Iceberg Bulletin

Issued 3:37 PM EDT 20 June 2025

Iceberg Limit

Iceberg limit at 0000 UTC 21 Jun estimated from Newfoundland near 4655N 5555W to 4500N 5525W to 4345N 4700W to 4705N 4140W to 4925N 4300W to 5745N 5405W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Cabot Strait - northern half

Issued 10:00 AM ADT 21 June 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 June 2025 Today Tonight and Sunday At 10:00 a.m. ADT today departing low 993 mb located northeast of
the Marine District.

At 3:30 p.m. ADT today ridge located over Quebec.
By 3:00 a.m. ADT Sunday ridge located from Anticosti Island to
Georges Bank.

At 3:00 a.m. ADT Sunday low 1000 mb located over southern Quebec.
By 8:00 p.m. ADT Sunday low 1002 mb located over Grand Manan.

Marine Weather Statement

Issued 2:28 PM ADT 21 June 2025 A departing low pressure system over Northern Newfoundland will move
to lie over the Labrador Sea by tonight. Strong to gale
Force west to northwest winds will diminish by this afternoon.

Marine interests are advised that gale warnings are in effect for
Cabot Strait - northern half, Gulf - Magdalen and Anticosti.

Atlantic - Maritimes Area

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Marine Weather for Canada

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