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Cabot Strait - southern half

Warnings

Forecast

Marine Forecast

Issued 03:30 PM ADT 30 April 2025

Tonight and Thursday.

Gale warning in effect.

Wind west 25 knots increasing to northwest 40 this evening with gusts to 50 along the coast. Wind diminishing to northwest 35 Thursday morning and to northwest 30 Thursday evening.

Showers ending this evening with a risk of thunderstorms. Scattered flurries overnight and Thursday morning. Visibility as low as 1 mile in flurries.

Waves

Issued 05:00 AM ADT 30 April 2025
Today Tonight and Thursday. Seas 1 to 2 metres building to 2 to 3 this morning and to 3 to 5 late overnight. Seas subsiding to 2 to 3 Thursday evening.

Extended Forecast

Issued 03:30 PM ADT 30 April 2025
Friday Wind northwest 25 knots diminishing to light late in the day.
Saturday Wind south 25 knots.
Sunday Wind southwest 25 knots.

Ice Forecast

Issued 10:00 AM EDT 30 April 2025 Today Tonight and Thursday 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 30 April 2025 Today Tonight and Thursday

Ice Edge

Ice edge estimated from Quebec near 5013N 6207W to 4959N 6152W to
4959N 6028W to 5053N 5806W to Newfoundland near 5029N 5728W. Sea ice
north then east of the ice edge.

Ice Coverage

Ice free.

 

Iceberg Bulletin

Issued 3:25 PM EDT 30 April 2025

Iceberg Limit

Iceberg limit at 0000 UTC 1 May estimated from Newfoundland near
4723N 5503W to 4040N 5210W to 4100N 4720W to 4530N 3335W to 4710N
3245W to 5915N 5605W to 6035N 5500W to 5920N 4925W then eastwards.

Western iceberg limit at 0000 UTC 1 May 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 - southern half

Issued 3:30 PM ADT 30 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 3:30 PM ADT 30 April 2025 Tonight and Thursday At 3:30 p.m. ADT today low 990 mb located over Anticosti Island.
By 3:30 p.m. ADT Thursday low 994 mb located over eastern
Newfoundland.

At 8:00 p.m. ADT Thursday approaching ridge located on a line
north-south over the western Marine District.

Marine Weather Statement

Issued 3:21 PM ADT 30 April 2025 A low pressure system over Anticosti Island will track east tonight
to lie over Eastern Newfoundland by Thursday afternoon. Strong to
gale force southwesterlies ahead of the low shift to strong to storm
force northwesterlies behind it. Winds will gradually diminish on
Thursday as high pressure builds in.

Marine interests are advised that storm warnings are in effect for
Gulf-Magdalen - northeastern half and Anticosti - southwestern half.
Gale warnings are in effect for Banquereau, Laurentian Fan -
northeastern half, Cabot Strait, Gulf-Magdalen - southwestern half,
Chaleur-Miscou, and Anticosti - northeastern half.

Atlantic - Maritimes Area

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Marine Weather for Canada

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