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South Labrador Sea

Warnings

Forecast

Marine Forecast

Issued 04:00 AM NDT 29 March 2025

Today Tonight and Sunday.

Wind variable 10 to 15 knots increasing to north 15 to 20 early this evening then backing to northwest 25 late overnight. Wind northwest 25 Sunday.

Flurries. Visibility as low as 1 mile in flurries.

Freezing spray warning in effect.

Over open water risk of freezing spray tonight. Freezing spray over western sections late overnight and Sunday.

Temperatures minus 8 to zero.

Waves

Issued 06:00 PM NDT 28 March 2025
Tonight and Saturday. Outside the ice edge seas 1 metre.

Extended Forecast

Issued 04:00 AM NDT 29 March 2025
Monday Wind northwest 25 to 35 knots diminishing to variable 15 to 20 late in the day.
Tuesday Wind southeast 25 knots increasing to southeast 35.
Wednesday Wind northwest 45 to 55 knots.

Ice Forecast

Issued 10:00 AM EDT 28 March 2025 Today Tonight and Saturday 2 tenths first-year ice including a trace of old ice except 9 tenths first-year ice including a trace of old ice in the extreme western section. 

[ Canadian Ice Service ]

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

Ice Forecasts

Issued 10:00 AM EDT 28 March 2025 Today Tonight and Saturday

Ice Edge

Ice edge estimated from Newfoundland near 4915N 5328W to 4915N 5134W
to 5104N 4817W to 5440N 5114W to 5734N 5655W to 6200N 5858W then
northeastward. Sea ice north then west of the ice edge.

Ice Coverage

2 tenths first-year ice including a trace of old ice except 9 tenths
first-year ice including a trace of old ice in the extreme western
section.

 

Iceberg Bulletin

Issued 2:49 PM EDT 28 March 2025

Iceberg Limit

Iceberg limit at 0000 UTC 29 Mar estimated from Newfoundland near
4643N 5307W to 4420N 5015W to 4515N 4525W to 4715N 4130W to 5030N
4440W to 5510N 4705W to 5900N 5620W to 6110N 5505W to 5825N 4710W
then eastwards.

Western iceberg limit at 0000 UTC 29 Mar estimated from Quebec near
5017N 6054W to Newfoundland near 4835N 5839W.

Iceberg Count

Unknown number of icebergs.
Warnings

Warnings (In effect)

Freezing spray warning in effect

South Labrador Sea

Issued 04:00 AM NDT 29 March 2025

Moderate or severe freezing spray is occurring or expected to occur in this marine area. 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 4:00 AM NDT 29 March 2025 Today Tonight and Sunday At 4:00 a.m. NDT today ridge located over the South Labrador Sea.
By 4:00 p.m. NDT today dissipating ridge located over the South
Labrador Sea.

At 4:00 a.m. NDT today trough located over Labrador Sea.
By 9:30 p.m. NDT tonight quasi-stationary low 1014 mb located over
the Northwest Labrador Sea.

Marine Weather Statement

Issued 3:48 AM NDT 29 March 2025 A near stationary trough of low pressure over the Labrador Sea will
gradually intensify into a low pressure system throughout the
forecast period. Strong to gale force northwesterly winds associated
with the low will develop over the Northwest Labrador Sea on Sunday.

Marine interests are advised that a gale warning is in effect for
Northwest Labrador Sea.

Marine interests are also advised that freezing spray warnings are in
effect for South Labrador Sea and Northwest Labrador Sea.

Atlantic - Maritimes Area

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Marine Weather for Canada

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