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South Labrador Sea

Warnings

Forecast

Marine Forecast

Issued 09:30 AM NDT 05 May 2025

Today Tonight and Tuesday.

Gale warning in effect.

Wind northwest 30 knots increasing to northwest 35 this afternoon then diminishing to northwest 25 this evening. Wind backing to southwest 15 to 20 after midnight then increasing to southwest 25 Tuesday morning. Wind increasing to northwest 35 near noon Tuesday then diminishing to northwest 15 to 20 Tuesday evening.

Flurries beginning near midnight becoming showers or flurries Tuesday morning and ending Tuesday afternoon. Visibility 1 mile or less in flurries.

Temperatures minus 3 to plus 1 rising to plus 3 Tuesday morning then falling to minus 2 to plus 2 Tuesday evening.

Waves

Issued 06:00 AM NDT 05 May 2025
Today Tonight and Tuesday. Outside the ice edge seas 1 to 2 metres building to 2 to 3 this morning and to 3 to 5 this afternoon. Seas subsiding to 3 Tuesday morning.

Extended Forecast

Issued 04:00 AM NDT 05 May 2025
Wednesday Wind variable 10 to 15 knots increasing to northwest 25 in the afternoon.
Thursday Wind northwest 15 to 20 knots diminishing to variable 10 to 15.
Friday Wind southwest 10 to 15 knots increasing to southwest 20.

Ice Forecast

Issued 10:00 AM EDT 5 May 2025 Today Tonight and Tuesday Bergy water except 4 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 Eskasoni (First Nations) Heath Point Bonavista Wreckhouse St.Paul Island Winterland Branch Hill Twillingate Stephenville Airport Burgeo St. Lawrence St. John's Int'l Airport St. Anthony Airport Grates Cove Cape Race Grand Étang Sagona Island North Mountain Port aux Basques Ingonish Beach La Scie Ferolle Point Englee Daniel's Harbour Corner Brook Cartwright Airport East Point West Chedabucto Bay – 44489 Blanc-Sablon Airport East Chedabucto Bay – 44488 Cap Whittle Chevery Banquereau - 44139 Charlottetown Airport Mary's Harbour North Cape Natashquan Airport Argentia J.A. Douglas McCurdy Sydney Airport Berry Hill Long Pond Îles de la Madeleine Airport Miscou Island Marticot Island Pool's Island
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 5 May 2025 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from Newfoundland near 4924N 5347W to 5244N 5318W
to 5745N 5747W to 6023N 5911W to 6200N 5830W 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 extreme western section.

 

Iceberg Bulletin

Issued 2:30 PM EDT 4 May 2025

Iceberg Limit

Iceberg limit at 0000 UTC 5 May estimated from Newfoundland near
4723N 5503W to 4040N 5210W to 4100N 4720W to 4530N 3335W to 4710N
3245W to 5915N 5605W to 5950N 5415W to 5830N 4530W then eastwards.

Western iceberg limit at 0000 UTC 5 May estimated from Quebec near
5020N 6115W to Newfoundland near 4745N 5910W.

Iceberg Count

Unknown number of icebergs.
Warnings

Warnings (In effect)

Gale warning in effect

South Labrador Sea

Issued 09:30 AM NDT 05 May 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.

Synopsis

Technical Marine Synopsis

Issued 9:30 AM NDT 5 May 2025 Today Tonight and Tuesday At 9:30 a.m. NDT today low 993 mb located over the northeastern
East Labrador Sea.
By 4:00 a.m. NDT Tuesday departing low 1001 mb located southeast
of the East Labrador Sea.

At 4:00 p.m. NDT today low 996 mb located over northern Quebec.
By 4:00 p.m. NDT Tuesday weakening low 1001 mb located over the
East Labrador Sea.

At 9:30 a.m. NDT today ridge located on a line north-south over
Quebec.
By 4:00 a.m. NDT Tuesday ridge located on a line north-south over
Labrador Sea.

Marine Weather Statement

Issued 9:26 AM NDT 5 May 2025 A weakening low pressure system over the Northeastern East Labrador
Sea will drift southeast of the district tonight. Meanwhile, a ridge
of high pressure will approach from the west to lie over the Labrador
Sea tonight. Strong to gale force northwesterlies can be expected
today into tonight between these features.

On Tuesday, another low pressure system approaching from Northern
Quebec will track across the Labrador Sea. Strong to gale force
northwesterlies can be expected behind this low.

Marine interests are advised that gale warnings are in effect for Mid
Labrador Coast, North Labrador Coast, and the Labrador Sea.

Marine interests are also advised that a freezing spray warning is in
effect for Northwest Labrador Sea.

Atlantic - Newfoundland Area

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Marine Weather for Canada

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