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Gulf - Port au Port

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Forecast

Marine Forecast

Issued 03:30 PM NST 13 December 2025

Tonight and Sunday.

Wind west 25 knots diminishing to west 15 to 20 near midnight and to west 10 to 15 early Sunday morning. Wind becoming light near noon Sunday then 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 03:30 PM 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 13 December 2025 Today Tonight and Sunday Open water except 2 tenths grey ice along parts of the Quebec coast. 

[ Canadian Ice Service ]

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Map of Atlantic - Newfoundland marine weather areas Eskasoni (First Nations) Heath Point Bonavista Wreckhouse St.Paul Island Winterland Branch Hill Twillingate Stephenville Airport Burgeo St. Lawrence St. John's Int'l Airport St. Anthony Airport Grates Cove Cape Race Grand Étang Sagona Island North Mountain Port aux Basques Ingonish Beach La Scie Ferolle Point Englee Daniel's Harbour Corner Brook Cartwright Airport East Point West Chedabucto Bay – 44489 Blanc-Sablon Airport East Chedabucto Bay – 44488 Cap Whittle Chevery Banquereau - 44139 Charlottetown Airport Mary's Harbour North Cape Natashquan Airport Argentia J.A. Douglas McCurdy Sydney Airport Berry Hill Long Pond Îles de la Madeleine Airport Miscou Island Marticot Island Pool's Island
Legend:
buoy Buoy
land station Land Station
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 Quebec coast.

 

Iceberg Bulletin

Issued 1:30 PM EST 13 December 2025

Iceberg Limit

Iceberg limit at 0000 UTC 14 Dec estimated from Newfoundland near
4730N 5239W to 4730N 5000W to 5130N 4815W 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 3:30 PM NST 13 December 2025 Tonight and Sunday At 3:30 p.m. NST today low 959 mb located southeast of Labrador Sea.
By 3:30 p.m. NST Sunday low 961 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.

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

Marine Weather Statement

Issued 3:17 PM NST 13 December 2025 An intense low pressure system southeast of the Labrador Sea will
start tracking eastward this evening to lie southeast of Greenland by
Sunday morning. Strong to gale force west to northwesterlies will
gradually diminish from west to east throughout the forecast period
as the low slowly pulls away.

Meanwhile, a second intensifying low pressure system will approach
the marine district on Sunday night. Gale force southwesterlies
associated with this system will develop over the Southern Grand
Banks late in the day on Sunday.

Marine interests are advised that gale warnings are in effect for
Southwest Coast, South Coast, East Coast, Belle Isle Bank, Funk
Island Bank, and the Grand Banks.

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

Marine interests are also advised that water levels are expected to
exceed the highest astronomical tide with high waves and pounding
surf, impacting some coastal areas of Northeast Coast and East Coast
Monday night into Tuesday morning, most significant near high tide.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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