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South Labrador Sea

Warnings

Forecast

Marine Forecast

Issued 09:30 PM NDT 12 March 2026

Tonight and Friday.

Storm warning in effect.

Wind variable 10 to 15 knots except north 15 to 20 over northwestern sections. Wind increasing to north 25 late overnight and to north 35 Friday afternoon. Wind increasing to north 40 to 50 Friday evening.

Flurries. Visibility as low as 1 mile in flurries.

Freezing spray warning in effect.

Over open water freezing spray over northwestern sections late overnight and Friday.

Temperatures minus 12 to minus 4 rising to minus 6 to zero Friday morning.

Waves

Issued 06:00 PM NDT 12 March 2026
Tonight and Friday. Outside the ice edge seas 2 to 3 metres except 3 to 5 over southeastern sections early this evening. Seas building to 3 to 5 Friday evening.

Extended Forecast

Issued 04:00 PM NDT 12 March 2026
Saturday Wind northwest 40 to 50 knots diminishing to west 20 in the afternoon.
Sunday Wind variable 10 to 15 knots increasing to northwest 25.
Monday Wind northwest 25 to 35 knots.

Ice Forecast

Issued 10:00 AM EDT 12 March 2026 Today Tonight and Friday Bergy water except 5 tenths first-year ice in the western section. 7 tenths first-year ice including a trace of old ice in the northwestern section. 

[ Canadian Ice Service ]

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

Ice Forecasts

Issued 10:00 AM EDT 12 March 2026 Today Tonight and Friday

Ice Edge

First ice edge estimated from 4640N 5530W to 4628N 5339W to
Newfoundland near 4638N 5314W. Sea ice north of the ice edge.

Second ice edge estimated from Newfoundland near 4746N 5243W to
4845N 5230W to 5001N 5302W to 5141N 4911W to 5500N 5130W to 5700N
5600W to 6000N 5815W to 6159N 5721W then northeastward. Sea ice west
of the ice edge.

Ice Coverage

Bergy water except 5 tenths first-year ice in the western section. 7
tenths first-year ice including a trace of old ice in the
northwestern section.

 

Iceberg Bulletin

Issued 2:53 PM EDT 12 March 2026

Iceberg Limit

Iceberg limit at 0000 UTC 13 Mar estimated from Newfoundland near
4640N 5310W to 4520N 4930W to 4555N 4410W to 4815N 4300W to 5220N
4615W to 5650N 5345W to 5930N 5700W to 6120N 5400W to 5825N 4900W
then eastward.

Iceberg Count

Unknown number of icebergs.
Warnings

Warnings (In effect)

Storm warning in effect

South Labrador Sea

Issued 9:30 PM NDT 12 March 2026

'Storm' force winds of 48 to 63 knots are 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.

Freezing spray warning in effect

South Labrador Sea

Issued 9:30 PM NDT 12 March 2026

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 9:30 PM NDT 12 March 2026 Tonight and Friday At 9:30 p.m. NDT tonight deepening low 993 mb located over the
Gulf of St. Lawrence.
By 9:30 p.m. NDT Friday low 963 mb located over Belle Isle Bank.

At 9:30 p.m. NDT tonight ridge located from Makkovik to Belle
Isle Bank.
By 4:00 p.m. NDT Friday departing ridge located southeast of the
East Labrador Sea.

Marine Weather Statement

Issued 9:28 PM NDT 12 March 2026 A deepening low pressure system will approach the marine district
from the southwest on Friday. Gale to storm force northerlies to
northeasterlies will shift to northwesterlies as the low passes south
of the district Friday night.

Marine interests are advised that storm warnings are in effect for
South Labrador Coast and South Labrador Sea. A gale warning is in
effect for Mid Labrador Coast.

Marine interests are also advised that freezing spray warnings are in
effect for the Labrador Sea.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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