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South Labrador Sea

Warnings

Forecast

Marine Forecast

Issued 04:00 AM NDT 20 April 2026

Today Tonight and Tuesday.

Wind south 15 to 20 knots increasing to south 30 this morning except northwest 25 over western sections tonight. Wind diminishing to northwest 15 to 20 late overnight then backing to west 10 to 15 near noon Tuesday except northwest 15 to 20 over southeastern sections.

Rain and fog patches changing to flurries overnight. Visibility 1 mile or less in fog patches and in flurries.

Temperatures plus 4 falling to minus 5 to zero Tuesday morning.

Waves

Issued 06:00 AM NDT 20 April 2026
Today Tonight and Tuesday. Outside the ice edge seas 1 to 2 metres building to 2 to 3 near noon then subsiding to 1 to 2 Tuesday evening.

Extended Forecast

Issued 04:00 AM NDT 20 April 2026
Wednesday Wind northwest 20 knots.
Thursday Wind variable 15 to 20 knots increasing to southeast 25.
Friday Wind northeast 25 knots.

Ice Forecast

Issued 10:00 AM EDT 19 April 2026 Today Tonight and Monday Bergy water except 5 tenths first-year ice including a trace of old ice in the 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
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 19 April 2026 Today Tonight and Monday

Ice Edge

Ice edge estimated from Newfoundland near 4745N 5243W to 4647N 4645W
to 5530N 5230W to 5700N 5600W to 6045N 5800W to 6200N 5700W then
northeastward. Sea ice north then west of the ice edge.

Ice Coverage

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

 

Iceberg Bulletin

Issued 2:30 PM EDT 19 April 2026

Iceberg Limit

Iceberg limit at 0000 UTC 20 Apr estimated from Newfoundland near
4655N 5400W to 4435N 5200W to 4415N 4710W to 4630N 4415W to 5000N
4425W to 5305N 4755W to 5900N 5500W to 6015N 5245W to 5830N 5000W
then eastward.

Iceberg Count

Unknown number of icebergs.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 4:00 AM NDT 20 April 2026 Today Tonight and Tuesday At 4:00 a.m. NDT today intensifying trough located over central
Labrador.
By 4:00 a.m. NDT Tuesday trough located on a line
northwest-southeast over Labrador Sea.

At 4:00 a.m. NDT today quasi-stationary ridge located over eastern
Greenland.

Marine Weather Statement

Issued 3:52 AM NDT 20 April 2026 An intensifying trough of low pressure over Central Labrador will
slowly move east to lie over the Labrador Sea by overnight tonight,
while a ridge of high pressure over Eastern Greenland remains nearly
stationary. Gale to storm force south to southeasterlies ahead of the
trough will shift to strong to gale force northwesterlies in its
wake.

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

Atlantic - Newfoundland Area

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Marine Weather for Canada

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