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Forecast

Marine Forecast

Issued 03:00 AM EST 13 December 2025

Today Tonight and Sunday.

Wind west 15 to 20 knots backing to southwest 15 near noon then diminishing to light early this evening. Wind becoming northeast 10 to 15 overnight. Wind northeast 10 to 15 Sunday.

Flurries overnight and Sunday. Visibility as low as 1 mile in flurries.

Temperatures near minus 5.

Waves

Issued 03:00 AM EST 13 December 2025
Today Tonight and Sunday. Seas 1 metre.

Extended Forecast

Issued 06:00 AM EST 13 December 2025
Monday Wind northwest 15 to 25 knots.
Tuesday Wind west 15 to 20 knots.
Wednesday Wind southwest 25 to 35 knots.

Ice Forecast

Issued 10:00 AM EST 12 December 2025 Today Tonight and Saturday 1 tenth grey ice except 7 tenths new ice including 2 tenths grey ice along parts of the southeastern coast. 

[ 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 12 December 2025 Today Tonight and Saturday

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

1 tenth grey ice except 7 tenths new ice including 2 tenths grey ice
along parts of the southeastern coast.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EST 13 December 2025 Today Tonight and Sunday At 3:00 a.m. EST today ridge located over Montréal.
By 7:00 p.m. EST tonight dissipating ridge located over Matane.

At 3:00 a.m. EST today low 1004 mb located over western Ontario.
By 3:00 a.m. EST Sunday dissipating low 1013 mb located over
Québec city.

At 7:00 a.m. EST Sunday ridge located from the Midwestern states
to Hudson Bay.
By 7:00 p.m. EST Sunday ridge located from the Great Lakes to
Ungava Bay.

Atlantic - Maritimes Area

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Marine Weather for Canada

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