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Gulf - Port au Port

Warnings

Forecast

Marine Forecast

Issued 03:00 AM NST 13 December 2025

Today Tonight and Sunday.

Wind northwest 30 knots backing to west 25 this morning then diminishing to west 15 to 20 overnight. Wind diminishing to west 10 to 15 Sunday morning then becoming light near noon Sunday. Wind increasing to northeast 15 to 20 Sunday evening.

Flurries changing to snow Sunday afternoon.

Temperatures minus 3 to plus 1 falling to minus 6 to minus 1 overnight.

Waves

Issued 06:00 AM NST 13 December 2025
Today Tonight and Sunday. Seas 2 to 3 metres subsiding to 1 to 2 Sunday morning and to 1 or less Sunday afternoon.

Extended Forecast

Issued 03:00 AM NST 13 December 2025
Monday Wind northeast 25 knots increasing to north 35 to 45 in the afternoon.
Tuesday Wind northwest 25 to 35 knots diminishing to north 15.
Wednesday Wind southwest 35 knots.

Ice Forecast

Issued 10:00 AM EST 12 December 2025 Today Tonight and Saturday Open water except 2 tenths grey ice along parts of the Quebec 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

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

 

Iceberg Bulletin

Issued 1:30 PM EST 12 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 13 Dec estimated from Newfoundland near
4730N 5239W to 4730N 5000W to 5200N 4845W to 5945N 5730W to 6155N
5330W to 6005N 4945W to 5900N 4600W then northeastward.

Iceberg Count

No confirmed icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM NST 13 December 2025 Today Tonight and Sunday At 3:00 a.m. NST today low 955 mb located southeast of Labrador Sea.
By 3:00 a.m. NST Sunday low 956 mb located southeast of Greenland.

At 8:00 p.m. NST tonight ridge located on a line northwest-southeast
over the Maritimes.
By 8:00 p.m. NST Sunday ridge located from the Grand Banks to
Labrador Coast.

At 8:00 p.m. NST Sunday approaching low 998 mb located south of
Nova Scotia.

Marine Weather Statement

Issued 2:54 AM NST 13 December 2025 An intense low pressure system southeast of the Labrador Sea will
remain nearly stationary today before tracking eastward this evening
to lie southeast of Greenland by Sunday morning. Strong to gale force
southwest to northwesterlies will gradually diminish from west to
east throughout the forecast period as the low slowly pulls away.

Marine interests are advised that gale warnings are in effect for all
waters except Gulf waters.

Marine interests are also advised that freezing spray warnings are in
effect for Northeast Coast and Belle Isle Bank.

Atlantic - Maritimes Area

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Marine Weather for Canada

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