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Cabot Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM AST 17 November 2025

Today Tonight and Tuesday.

Gale warning in effect.

Wind south 15 to 20 knots veering to southwest 25 early this morning then increasing to southwest 35 near noon. Wind diminishing to southwest 25 after midnight then veering to west 20 Tuesday evening.

Scattered showers. Fog patches dissipating this morning.

Waves

Issued 05:00 AM AST 17 November 2025
Today Tonight and Tuesday. Seas 2 to 3 metres building to 3 to 5 near noon then subsiding to 2 to 3 Tuesday morning.

Extended Forecast

Issued 03:00 AM AST 17 November 2025
Wednesday Wind southwest 25 knots diminishing to southwest 15 in the afternoon.
Thursday Wind west 15 knots diminishing to light.
Friday Wind southeast 15 to 20 knots increasing to southeast 25.

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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 1:30 PM EST 16 November 2025

Iceberg Limit

Iceberg limit at 0000 UTC 17 Nov estimated from Newfoundland near
5009N 5609W to 5030N 5030W to 5115N 4930W to 5430N 5030W to 5945N
5730W to 6100N 5310W to 6000N 4940W then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Cabot Strait

Issued 03:00 AM AST 17 November 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 3:00 AM AST 17 November 2025 Today Tonight and Tuesday At 3:00 a.m. AST today low 973 mb located over the western Gulf
of St. Lawrence.
By 3:00 a.m. AST Tuesday low 980 mb located over the eastern Gulf
of St. Lawrence.

Marine Weather Statement

Issued 2:50 AM AST 17 November 2025 A low pressure system over the Western Gulf of St. Lawrence will
slowly track eastward today before moving northward into Labrador
Tuesday morning. Gale force northeasterlies to the north of the low
and southerlies east of the low will give way to strong to gale force
westerlies over all waters as the low progresses eastward.

Marine interests are advised that gale warnings are in effect for all
waters except Northumberland Strait - western half and Gulf -
Magdalen - western half.

Atlantic - Maritimes Area

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Marine Weather for Canada

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