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Marine Forecast

Issued 10:00 AM NST 10 December 2025

Today Tonight and Thursday.

Wind west 30 knots diminishing to southwest 15 to 20 near noon then backing to south 25 early this evening. Wind diminishing to variable 10 to 15 near midnight then increasing to southeast 15 to 20 Thursday morning. Wind veering to southwest 25 Thursday evening.

Flurries becoming showers or flurries this afternoon then rain Thursday morning. Fog patches forming overnight and dissipating Thursday evening. Visibility 1 mile or less in flurries and in fog patches.

Waves

Issued 06:00 AM NST 10 December 2025
Today Tonight and Thursday. Seas 2 to 3 metres subsiding to 1 to 2 this afternoon then building to 2 to 3 Thursday afternoon. Seas building to 3 to 4 Thursday evening.

Extended Forecast

Issued 03:00 AM NST 10 December 2025
Friday Wind southwest 15 to 20 knots increasing to southwest 25 to 35 in the morning.
Saturday Wind southwest 35 to 45 knots veering to west 25 to 35.
Sunday Wind southwest 15 to 20 knots.

Ice Forecast

Issued 10:00 AM EST 10 December 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 EST 10 December 2025 Today Tonight and Thursday

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 4949N 6317W to
4946N 5954W to 5106N 5804W to Newfoundland near 5029N 5728W. Sea ice
north of the ice edge.

Ice Coverage

Ice free.

 

Iceberg Bulletin

Issued 1:30 PM EST 9 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 10 Dec estimated from Newfoundland near
4745N 5245W to 4800N 5100W to 5300N 5015W to 5945N 5730W then
northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM NST 10 December 2025 Today Tonight and Thursday At 10:00 a.m. NST today low 955 mb located south of Greenland.
By 8:00 p.m. NST tonight departing low 956 mb located southeast
of Greenland.

At 10:00 a.m. NST today deepening low 991 mb located near the
Great Lakes.
By 10:00 a.m. NST Thursday deepening low 984 mb located over
New Brunswick.

At 10:00 a.m. NST today ridge located on a line northwest-southeast
over Cabot Strait.
By 10:00 a.m. NST Thursday departing ridge located east of Funk
Island Bank.

Marine Weather Statement

Issued 9:54 AM NST 10 December 2025 An intense low pressure system south of Greenland will continue to
slowly track northeastward away from the district today. Strong to
gale force west to northwesterlies will persist in the low's wake
until this evening.

A second low pressure system will approach the district from the west
tonight and track into the Gulf of St. Lawrence on Thursday. Strong
to gale force southwesterlies will develop over most waters ahead of
this system.

Marine interests are advised that gale warnings are in effect for
East Coast, Northeast Coast - Cape St. John and south, Belle Isle
Bank, Funk Island Bank, and the Grand Banks.

Marine interests are also advised that freezing spray warnings are in
effect for Strait of Belle Isle, Northeast Gulf, Northeast Coast -
north of Cape St. John, and Belle Isle Bank.

Atlantic - Maritimes Area

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Marine Weather for Canada

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