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Gulf - Port au Port

Warnings

Forecast

Marine Forecast

Issued 10:00 AM NDT 18 April 2026

Today Tonight and Sunday.

Gale warning in effect.

Wind northeast 10 to 15 knots diminishing to light near noon then increasing to southeast 10 to 15 early this evening. Wind increasing to south 25 near midnight and to south 35 Sunday morning.

Showers Sunday. Fog patches forming Sunday evening.

Temperatures minus 3 rising to plus 2 overnight.

Waves

Issued 06:00 AM NDT 18 April 2026
Today Tonight and Sunday. Seas 1 metre or less building to 2 to 3 near midnight and to 3 to 4 Sunday morning.

Extended Forecast

Issued 03:00 AM NDT 18 April 2026
Monday Wind south 25 to 35 knots becoming west 25 in the afternoon.
Tuesday Wind variable 10 to 15 knots.
Wednesday Wind north 20 knots.

Ice Forecast

Issued 10:00 AM EDT 18 April 2026 Today Tonight and Sunday Open water. Consolidated rotten first-year ice along parts of the coasts. 

[ Canadian Ice Service ]

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Map of Atlantic - Maritimes marine weather areas East Scotia Slope - 44137 Cap-Chat Burgeo Île Bicquette New Carlisle Îles de la Madeleine Airport Port Menier Summerside North Cape Pointe-au-Père Mont-Joli Airport La Pocatière Wreckhouse Banquereau - 44139 Port aux Basques Sagona Island Gaspé Airport LaHave Bank - 44150 Halifax Harbour - 44258 St. Lawrence Stephenville Airport Western Head Winterland Branch Hill Île aux Perroquets Beaver Island Baccaro Point St. Stephen Pointe-des-Monts Saint John Airport Sept-Îles Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Longue-Pointe-de-Mingan Miscou Island Île Rouge Kouchibouguac Pointe-Noire Kouchibouguac Havre-Saint-Pierre Airport Grand Manan Fundy Park (Alma) Miramichi Charlo West Chedabucto Bay – 44489 Bathurst Airport Baie-Comeau Airport Bas Caraquet East Chedabucto Bay – 44488 Nappan AAFC East Point Charlottetown Airport Yarmouth Airport Cap-d'Espoir Tracadie J.A. Douglas McCurdy Sydney Airport Shearwater Airport St.Paul Island Sable Island Parrsboro North Mountain Rivière-la-Madeleine McNabs Island Lunenburg Kentville AAFC Ingonish Beach Hart Island CFB Greenwood Grand Étang Eskasoni (First Nations) Debert Caribou Point Brier Island
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 18 April 2026 Today Tonight and Sunday

Ice Edge

First ice edge estimated from Cape Breton Island near 4702N 6025W to
4745N 6115W to Gaspe Peninsula near 4846N 6410W. Sea ice southwest
of the ice edge.

Second ice edge estimated from Quebec near 4838N 6811W to 5005N
6600W to 4945N 6015W to Newfoundland near 4806N 5905W. Sea ice north
of the ice edge.

Ice Coverage

Open water. Consolidated rotten first-year ice along parts of the
coasts.

 

Iceberg Bulletin

Issued 2:40 PM EDT 17 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 18 Apr estimated from Newfoundland near
4655N 5400W to 4500N 5200W to 4440N 4710W to 4630N 4415W to 5000N
4425W to 5305N 4755W to 5900N 5500W to 6015N 5245W to 5830N 5000W
then eastward.

Iceberg Count

No confirmed icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

Gulf - Port au Port

Issued 10:00 AM NDT 18 April 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM NDT 18 April 2026 Today Tonight and Sunday At 10:00 a.m. NDT today trough located east of the Marine District.
By 3:30 p.m. NDT today departing trough located east of the Marine
District.

At 3:00 a.m. NDT Sunday approaching trough located over southern
Quebec.

At 10:00 a.m. NDT today ridge located on a line north-south over
the Gulf of St. Lawrence.
By 10:00 a.m. NDT Sunday ridge located on a line north-south over
the northern Grand Banks.

Marine Weather Statement

Issued 9:57 AM NDT 18 April 2026 A trough of low pressure east of the marine district will continue to
move eastward today. Strong to gale force northerlies to
northwesterlies over eastern waters behind the trough will diminish
today as the trough departs and a ridge of high pressure builds in
from the west.

On Sunday, the ridge will lie east of Newfoundland and a trough of
low pressure will slowly move across the St. Lawrence River Valley.
Between these two features, strong to gale force southerlies are
expected over western waters.

Marine interests are advised that gale warnings are in effect for
Gulf - Port au Port, Belle Isle Bank, Funk Island Bank, and Northern
Grand Banks.

Marine interests are advised that freezing spray warnings are in
effect for Strait of Belle Isle - eastern half, Northeast Coast,
Belle Isle Bank, and Funk Island Bank.

Atlantic - Maritimes Area

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Marine Weather for Canada

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