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South Labrador Sea

Warnings

Forecast

Marine Forecast

Issued 09:30 PM NDT 11 March 2025

Tonight and Wednesday.

Gale warning in effect.

Wind northwest 35 knots diminishing to northwest 25 late overnight and to light Wednesday morning except west 20 over southern sections Wednesday morning and afternoon and south 25 over southeastern sections Wednesday late in the day.

Snow overnight and Wednesday. Visibility 1 mile or less in snow.

Freezing spray warning in effect.

Over open water freezing spray over western sections late this evening overnight and Wednesday morning.

Temperatures minus 6 to plus 2.

Waves

Issued 06:00 PM NDT 11 March 2025
Tonight and Wednesday. Outside the ice edge seas 4 to 6 metres subsiding to 3 to 4 Wednesday morning.

Extended Forecast

Issued 04:00 PM NDT 11 March 2025
Thursday Wind south 25 knots increasing to west 25 to 35 in the morning then diminishing to southwest 20 late in the day.
Friday Wind south 25 knots veering to west 25.
Saturday Wind northwest 35 knots.

Ice Forecast

Issued 10:00 AM EDT 11 March 2025 Today Tonight and Wednesday 1 tenth first-year ice including a trace of old ice except 6 tenths first-year ice including a trace of old ice in the southwestern section. 

[ Canadian Ice Service ]

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

Ice Forecasts

Issued 10:00 AM EDT 11 March 2025 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Newfoundland near 4652N 5523W to 4610N 5231W
to 5400N 4929W to 5800N 5730W to 6116N 5852W to 6200N 5815W then
northeastward. Sea ice west of the ice edge.

Ice Coverage

1 tenth first-year ice including a trace of old ice except 6 tenths
first-year ice including a trace of old ice in the southwestern
section.

 

Iceberg Bulletin

Issued 2:41 PM EDT 11 March 2025

Iceberg Limit

Iceberg limit at 0000 UTC 12 Mar estimated from Newfoundland near
4700N 5315W to 4825N 4710W to 5025N 4505W to 5335N 4745W to 5900N
5620W to 6020N 5530W then eastwards.

Western iceberg limit at 0000 UTC 12 Mar estimated from Quebec near
5030N 6015W to Newfoundland near 4850N 5755W.

Iceberg Count

Unknown number of icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

South Labrador Sea

Issued 9:30 PM NDT 11 March 2025

'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 9:30 PM NDT 11 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 9:30 PM NDT 11 March 2025 Tonight and Wednesday At 9:30 p.m. NDT tonight quasi-stationary trough located on a line
northwest-southeast over central Labrador Sea.

At 9:30 p.m. NDT tonight ridge located over the coast of Labrador.
By 9:30 a.m. NDT Wednesday dissipating ridge located off Labrador
Coast.

At 9:30 p.m. NDT tonight trough located over western Labrador.
By 9:30 p.m. NDT Wednesday low 993 mb located over the South
Labrador Coast.

Marine Weather Statement

Issued 9:21 PM NDT 11 March 2025 A trough of low pressure over the Central Labrador Sea will remain
nearly stationary tonight before gradually weakening on Wednesday.
Gale to storm force southeasterlies to the east of the trough will
persist through the forecast period, while strong to gale force
northwesterlies to its west will diminish on Wednesday as the trough
weakens.

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

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

Atlantic - Newfoundland Area

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Marine Weather for Canada

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