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Cabot Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 29 April 2025

Today Tonight and Wednesday.

Strong wind warning in effect.

Wind northeast 15 knots diminishing to light this morning then increasing to south 20 this evening. Wind increasing to south 30 overnight then veering to west 25 Wednesday afternoon.

Showers Wednesday.

Temperatures near plus 2.

Waves

Issued 05:00 PM ADT 28 April 2025
Tonight and Tuesday. Seas 2 to 3 metres subsiding to 1 late overnight then building to 2 Tuesday evening.

Extended Forecast

Issued 03:00 AM ADT 29 April 2025
Thursday Wind northwest 35 to 40 knots.
Friday Wind northwest 25 knots diminishing to light late in the day.
Saturday Wind south 25 knots.

Ice Forecast

Issued 10:00 AM EDT 27 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 27 April 2025 Today Tonight and Monday

Ice Edge

First ice edge estimated from Quebec near 4832N 6412W to 4835N 6404W
to 4844N 6402W to Quebec near 4851N 6412W. Sea ice west of the ice
edge.

Second ice edge estimated from Quebec near 5011N 6057W to 4955N
6023W to 5107N 5730W to Newfoundland near 5029N 5728W. Sea ice north
then east of the ice edge.

Ice Coverage

Ice free.

 

Iceberg Bulletin

Issued 2:30 PM EDT 28 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 28 Apr estimated from Newfoundland near
4723N 5503W to 4040N 5210W to 4100N 4720W to 4655N 3430W to 5355N
4530W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.

Western iceberg limit at 0000 UTC 28 Apr estimated from Quebec near
5020N 6115W to Newfoundland near 4805N 5845W.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Strong wind warning in effect

Cabot Strait

Issued 03:00 AM ADT 29 April 2025

'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 or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 29 April 2025 Today Tonight and Wednesday At 3:00 a.m. ADT today departing low 1008 mb located over
Laurentian Fan.

At 3:00 a.m. ADT today low 997 mb located over the Great Lakes.
By 3:30 p.m. ADT Wednesday low 989 mb located near Anticosti Island.

Marine Weather Statement

Issued 2:45 AM ADT 29 April 2025 A low pressure system over the Great Lakes will track northeast
towards the marine district today and tonight to lie near Anticosti
Island by Wednesday afternoon. Strong southwesterlies ahead of the
low shift to strong to gale force northwesterlies behind it.

Marine interests are advised that gale warnings are in effect for
Gulf-Magdalen, Chaleur-Miscou and Anticosti.

Atlantic - Maritimes Area

Another Region

Marine Weather for Canada

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