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South Labrador Sea

Warnings

Forecast

Marine Forecast

Issued 09:30 AM NDT 20 May 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind variable 10 to 15 knots increasing to southeast 15 to 20 this evening and to southeast 25 near midnight except north 30 over northwestern sections Thursday morning and afternoon. Wind diminishing to north 15 to 20 Thursday afternoon except northwest 35 over northwestern sections.

Snow or rain overnight and Thursday. Visibility 1 mile or less in precipitation.

Waves

Issued 06:00 AM NDT 20 May 2026
Today Tonight and Thursday. Seas 1 to 2 metres building to 2 to 3 Thursday morning.

Extended Forecast

Issued 04:00 AM NDT 20 May 2026
Friday Wind northwest 35 to 45 knots veering to northeast 25 to 35 in the afternoon.
Saturday Wind northwest 25 to 35 knots.
Sunday Wind northwest 25 knots.

Ice Forecast

Issued 10:00 AM EDT 20 May 2026 Today Tonight and Thursday Bergy water except 3 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 - 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
Legend:
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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 20 May 2026 Today Tonight and Thursday

Ice Edge

First ice edge estimated from Labrador near 5151N 5606W to
Newfoundland near 5138N 5554W. Sea ice northeast of the ice edge.

Second ice edge estimated from Newfoundland near 5137N 5537W to
5503N 5433W to 5720N 5810W to 5852N 5756W to 6200N 6045W then
northeastward. Sea ice west of the ice edge.

Ice Coverage

Bergy water except 3 tenths first-year ice including a trace of old
ice in the extreme western section.

 

Iceberg Bulletin

Issued 2:30 PM EDT 19 May 2026

Iceberg Limit

Iceberg limit at 0000 UTC 20 May estimated from Newfoundland near
4700N 5520W to 4325N 5015W to 4320N 4615W to 4845N 4335W to 5310N
4635W to 5550N 5010W to 5900N 5500W to 5955N 5310W to 5825N 4810W
then northeastward.

Iceberg Count

Unknown number of icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

South Labrador Sea

Issued 09:30 AM NDT 20 May 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 9:30 AM NDT 20 May 2026 Today Tonight and Thursday At 9:30 a.m. NDT today deepening low 998 mb located over eastern
Quebec.
By 4:00 a.m. NDT Thursday deepening low 988 mb located over
southern Labrador.

At 9:30 a.m. NDT Thursday deepening trough located on a line
north-south over the East Labrador Sea.
By 9:30 p.m. NDT Thursday trough located on a line
northwest-southeast over the South Labrador Sea.

At 9:30 a.m. NDT today ridge located over Labrador Sea.
By 9:30 p.m. NDT tonight dissipating ridge located over Labrador
Sea.

Marine Weather Statement

Issued 9:15 AM NDT 20 May 2026 A deepening low pressure system over Quebec will move through
Labrador tonight before crossing the Belle Isle Bank on Thursday.
Over southern waters strong to gale force southeasterlies ahead of
the low increase to gale force northwesterlies behind it.

Meanwhile, on Thursday a trough of low pressure extending northward
from the low will move southward across the Labrador Sea. Strong to
gale force north to northwesterlies ahead of the trough veer to
strong to gale force easterlies as it passes.

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

Atlantic - Newfoundland Area

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Marine Weather for Canada

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