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Northumberland Strait - western half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM AST 05 December 2025

Today Tonight and Saturday.

Gale warning in effect.

Wind northwest 35 knots diminishing to west 25 early this afternoon and to west 15 to 20 after midnight. Wind diminishing to light early Saturday morning then becoming south 10 to 15 Saturday evening.

Freezing spray warning in effect.

Freezing spray ending after midnight.

Temperatures minus 9 rising to minus 1 Saturday evening.

Extended Forecast

Issued 03:00 AM AST 05 December 2025
Sunday Wind south 15 knots becoming northwest 15 in the afternoon.
Monday Wind northwest 15 knots increasing to northwest 25.
Tuesday Wind west 20 knots.

Ice Forecast

Issued 10:00 AM EST 4 December 2025 Today Tonight and Friday Open water. 

[ 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 EST 4 December 2025 Today Tonight and Friday

Ice Edge

Ice edge estimated from Gaspe Peninsula near 4856N 6712W to 4956N
6635W to 4958N 6014W to Quebec near 5125N 5737W. Sea ice north of
the ice edge.

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

Northumberland Strait - western half

Issued 10:00 AM AST 05 December 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.

Freezing spray warning in effect

Northumberland Strait - western half

Issued 10:00 AM AST 05 December 2025

Moderate or severe freezing spray is 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 10:00 AM AST 5 December 2025 Today Tonight and Saturday At 10:00 a.m. AST today intensifying low 982 mb located over
eastern Newfoundland.
By 8:00 p.m. AST tonight low 966 mb located east of Newfoundland.

At 10:00 a.m. AST today ridge located over New England.
By 10:00 a.m. AST Saturday ridge located over the central Marine
District.

Marine Weather Statement

Issued 9:55 AM AST 5 December 2025 An intense low pressure system over Northeastern Newfoundland will
slowly track eastward to lie east of Newfoundland this evening while
a ridge of high pressure over New England will move to lie over the
western marine district tonight. Gale to storm force northwesterlies
are expected between these two features.

Marine interests are advised that storm warnings are in effect for
Banquereau, Cabot Strait, Gulf-Magdalen - northeastern half, and
Anticosti - southeastern half. Gale warnings are in effect for
remaining waters except Fundy, Grand Manan, Lurcher, Browns Bank,
Georges Bank, West Scotian Slope, southwestern shore and LaHave Bank.

Marine interests are also advised that freezing spray warnings are in
effect for all waters except Lurcher, Browns Bank, Georges Bank, West
Scotian Slope, East Scotian Slope, and Laurentian Fan.

Atlantic - Maritimes Area

Another Region

Marine Weather for Canada

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