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Northumberland Strait - eastern half

Warnings

Forecast

Marine Forecast

Issued 10:00 AM AST 13 December 2025

Today Tonight and Sunday.

Wind west 20 knots backing to southwest 15 this evening then diminishing to light after midnight. Wind increasing to north 20 Sunday evening.

Flurries this morning overnight and Sunday. Visibility 1 mile or less in flurries.

Temperatures near plus 1.

Extended Forecast

Issued 03:00 AM AST 13 December 2025
Monday Wind northerly 25 knots increasing to northerly 40 in the afternoon.
Tuesday Wind northwest 35 knots diminishing to northwesterly 25.
Wednesday Wind southwest 20 to 25 knots.

Ice Forecast

Issued 10:00 AM EST 13 December 2025 Today Tonight and Sunday Open water except 2 tenths grey ice along parts of the coasts. 

[ 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 13 December 2025 Today Tonight and Sunday

Ice Edge

First ice edge estimated from 4723N 6136W to 4738N 6112W to 4744N
6124W to 4734N 6159W to 4706N 6212W to 4706N 6147W to 4723N 6136W.
Sea ice within the ice edge.

Second ice edge estimated from Nova Scotia near 4551N 6201W to
Prince Edward Island near 4621N 6211W. Sea ice west of the ice edge.

Third ice edge estimated from Prince Edward Island near 4628N 6231W
to 4640N 6329W to 4736N 6409W to 4904N 6404W to 4925N 6516W to 4916N
6703W to 4956N 6635W to Anticosti Island near 4924N 6336W. Sea ice
west then north of the ice edge.

Fourth ice edge estimated from Anticosti Island near 4945N 6301W to
4946N 5954W to 5106N 5804W to Newfoundland near 5029N 5728W. Sea ice
north of the ice edge.

Ice Coverage

Open water except 2 tenths grey ice along parts of the coasts.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM AST 13 December 2025 Today Tonight and Sunday At 10:00 a.m. AST today departing low 956 mb located east of
Labrador Sea.

At 3:30 p.m. AST Sunday low 1003 mb located southwest of Georges
Bank.
By 8:00 p.m. AST Sunday low 996 mb located over West Scotian Slope.

At 10:00 a.m. AST today ridge located from Quebec to the Gulf
of Maine.
By 8:00 p.m. AST tonight weakening ridge located from New Brunswick
to East Scotian Slope.

Marine Weather Statement

Issued 9:28 AM AST 13 December 2025 An intense low pressure system east of the Labrador Sea will continue
slowly tracking eastward today. Strong to gale force westerly winds
will diminish through the day today.

A second low pressure system will approach the slope waters from the
southwest on Sunday and will lie over West Scotian Slope Sunday
evening. Strong to gale force southwest winds are forecast southeast
of the low with strong to possibly gale force northerly winds
expected to the northwest of it.

Marine interests are advised that gale warnings are in effect for
East Scotian Slope - southern half, Banquereau, Laurentian Fan, and
Cabot Strait - northern half.

Atlantic - Maritimes Area

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Marine Weather for Canada

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