Marine Forecast
Issued 09:30 AM NST 18 December 2025
Today Tonight and Friday.
Gale warning in effect.
Wind northwest 35 knots backing to west 35 to 45 this afternoon
then diminishing to west 25 Friday morning. Wind backing to south 15 to 20
Friday afternoon then to southeast 25 Friday evening.
Flurries changing to snow Friday evening. Visibility 1 mile
or less in precipitation.
Freezing spray warning in effect.
Freezing spray ending Friday evening.
Temperatures minus 10 to minus 4 rising to minus 3 Friday
evening.
Winds
Issued 09:30 AM NST 18 December 2025
Today Tonight and Friday.
Gale warning in effect.
Wind northwest 35 knots backing to west 35 to 45 this afternoon
then diminishing to west 25 Friday morning. Wind backing to south 15 to 20
Friday afternoon then to southeast 25 Friday evening.
Waves
Issued 06:00 AM NST 18 December 2025
South Labrador Sea - northwestern half
Today Tonight and Friday.
Seas 3 to 5 metres subsiding to 2 to 3 near noon Friday and to 1
to 2 Friday evening.
South Labrador Sea - southeastern half
Today Tonight and Friday.
Seas 3 to 4 metres building to 4 to 6 near noon then subsiding to
3 to 4 Friday afternoon. Seas subsiding to 2 to 3 Friday evening.
Weather & Visibility
Issued 09:30 AM NST 18 December 2025
Today Tonight and Friday.
Flurries changing to snow Friday evening. Visibility 1 mile
or less in precipitation.
Air temperature
Issued 09:30 AM NST 18 December 2025
Today Tonight and Friday.
Temperatures minus 10 to minus 4 rising to minus 3 Friday
evening.
Freezing Spray
Issued 09:30 AM NST 18 December 2025
Today Tonight and Friday.
Freezing spray warning in effect.
Freezing spray ending Friday evening.
Ice Forecasts
Issued 10:00 AM EST 18 December 2025 Today Tonight and Friday Ice Edge
Ice edge estimated from Newfoundland near 4842N 5305W to 4935N 5326W
to 5012N 5536W to 5125N 5504W to 5349N 5528W to 5633N 6011W to 5928N
6239W to Labrador near 6200N 5947W. Sea ice west of the ice edge.
Ice Coverage
Bergy water.
Iceberg Bulletin
Issued 1:30 PM EST 17 December 2025 Iceberg Limit
Iceberg limit at 0000 UTC 18 Dec estimated from Newfoundland near
5020N 5628W to 5030N 5500W to 5330N 5200W to 5945N 5730W to 6155N
5330W to 6005N 4945W to 5900N 4600W then northeastward.Iceberg Count
Unknown number of icebergs.
Warnings (In effect)
South Labrador Sea
Issued 09:30 AM NST 18 December 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.
South Labrador Sea
Issued 09:30 AM NST 18 December 2025Moderate 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.
Technical Marine Synopsis
Issued 9:30 AM NST 18 December 2025 Today Tonight and Friday At 9:30 a.m. NST today trough located on a line northwest-southeast
over eastern Labrador Sea.
By 4:00 a.m. NST Friday trough located southeast of Greenland.
At 4:00 a.m. NST Friday approaching ridge located on a line
northwest-southeast over Labrador.
Marine Weather Statement
Issued 9:29 AM NST 18 December 2025 A trough of low pressure currently over the East Labrador Sea will
move to lie southeast of Greenland tonight. The trough will slowly
depart to the east on Friday. Strong to gale force northwesterlies
behind the trough will gradually diminish tonight into Friday as the
trough departs.
Marine interests are advised that gale warnings are in effect for all
waters except Lake Melville.
Marine interests are also advised that freezing spray warnings are in
effect for all waters.