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South Labrador Sea

Warnings

Forecast

Marine Forecast

Issued 09:30 AM NDT 18 April 2026

Today Tonight and Sunday.

Gale warning in effect.

Wind northwest 35 knots except northwest 25 over northwestern sections. Wind diminishing to northwest 20 this afternoon then backing to southwest 15 to 20 this evening. Wind backing to south 25 late overnight. Wind south 25 Sunday.

Flurries ending this afternoon. Flurries beginning overnight and changing to showers near noon Sunday and ending Sunday afternoon. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Over open water freezing spray over western sections late this morning and this afternoon.

Temperatures minus 7 to zero rising to plus 2 Sunday morning.

Waves

Issued 06:00 AM NDT 18 April 2026
Today Tonight and Sunday. Outside the ice edge seas 3 to 5 metres subsiding to 2 to 3 this evening.

Extended Forecast

Issued 04:00 AM NDT 18 April 2026
Monday Wind south 25 knots.
Tuesday Wind west 15 to 20 knots.
Wednesday Wind north 25 knots becoming southeast 25.

Ice Forecast

Issued 10:00 AM EDT 18 April 2026 Today Tonight and Sunday Bergy water except 4 tenths first-year ice including a trace of old ice in the western section. 

[ Canadian Ice Service ]

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Weather Conditions

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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 18 April 2026 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Newfoundland near 4745N 5243W to 4530N 4721W
to 4639N 4639W 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 4 tenths first-year ice including a trace of old
ice in the western section.

 

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

Unknown number of icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

South Labrador Sea

Issued 09:30 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.

Freezing spray warning in effect

South Labrador Sea

Issued 09:30 AM NDT 18 April 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 AM NDT 18 April 2026 Today Tonight and Sunday At 9:30 a.m. NDT today trough located east of the Marine District.
By 9:30 p.m. NDT tonight departing trough located southeast of
Greenland.

At 9:30 a.m. NDT today trough located on a line east-west over
northern Quebec.
By 9:30 a.m. NDT Sunday trough located on a line east-west over
the Northwest Labrador Sea.

At 9:30 a.m. NDT today ridge located over western Labrador.
By 9:30 a.m. NDT Sunday ridge located from the Grand Banks to the
East Labrador Sea.

Marine Weather Statement

Issued 9:23 AM NDT 18 April 2026 A trough of low pressure east of the marine district will move to lie
southeast of Greenland by this evening. Strong to gale force
northwesterlies will gradually diminish today as the trough moves
away.

Marine interests are advised that gale warnings and 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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