Marine Forecast
Issued 04:00 AM NST 20 December 2025
Today Tonight and Sunday.
Storm warning in effect.
Wind south 35 knots increasing to south 45 this morning and to
southwest 45 to 55 this afternoon. Wind diminishing to west 35 to 45 this
evening then backing to southwest 25 to 35 late overnight. Wind becoming
southwest 25 Sunday morning then diminishing to southwest 15 to 20 Sunday
afternoon. Wind diminishing to variable 10 to 15 Sunday evening.
Showers changing to flurries this afternoon and ending near
midnight. Visibility 1 mile or less in flurries.
Freezing spray warning in effect.
Over open water moderate freezing spray beginning this afternoon
and ending Sunday evening except severe tonight.
Temperatures plus 5 falling to minus 19 Sunday
evening.
Winds
Issued 04:00 AM NST 20 December 2025
Today Tonight and Sunday.
Storm warning in effect.
Wind south 35 knots increasing to south 45 this morning and to
southwest 45 to 55 this afternoon. Wind diminishing to west 35 to 45 this
evening then backing to southwest 25 to 35 late overnight. Wind becoming
southwest 25 Sunday morning then diminishing to southwest 15 to 20 Sunday
afternoon. Wind diminishing to variable 10 to 15 Sunday evening.
Weather & Visibility
Issued 04:00 AM NST 20 December 2025
Today Tonight and Sunday.
Showers changing to flurries this afternoon and ending near
midnight. Visibility 1 mile or less in flurries.
Air temperature
Issued 04:00 AM NST 20 December 2025
Today Tonight and Sunday.
Temperatures plus 5 falling to minus 19 Sunday
evening.
Freezing Spray
Issued 04:00 AM NST 20 December 2025
Today Tonight and Sunday.
Freezing spray warning in effect.
Over open water moderate freezing spray beginning this afternoon
and ending Sunday evening except severe tonight.
Ice Forecasts
Issued 10:00 AM EST 19 December 2025 Today Tonight and Saturday 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 6200N 5947W then northeastward. Sea ice west of the ice
edge.
Ice Coverage
Ice pressure warning in effect.
9 tenths new ice including 1 tenth grey-white ice except 9 plus
tenths grey ice including 3 tenths grey-white ice in the eastern
section. Consolidated grey-white ice including 4 tenths first-year
ice in the extreme western section.
Strong ice pressure in the pack ice in the eastern section
developing near noon Saturday.
Warnings (In effect)
Lake Melville
Issued 04:00 AM NST 20 December 2025'Storm' force winds of 48 to 63 knots are 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.
Lake Melville
Issued 04:00 AM NST 20 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.
Lake Melville
Issued 11:30 AM NST 19 December 2025Navigators in this marine area should be on the lookout for hazardous ice conditions and take necessary safety precautions. Please refer to the latest ice forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio stations.
Technical Marine Synopsis
Issued 4:00 AM NST 20 December 2025 Today Tonight and Sunday At 4:00 a.m. NST today departing ridge located east of Labrador Sea.
At 4:00 a.m. NST today deepening low 966 mb located over western
Labrador.
By 4:00 a.m. NST Sunday low 948 mb located over the East Labrador
Sea.
Marine Weather Statement
Issued 3:52 AM NST 20 December 2025 An intensifying low pressure system over Western Labrador will track
over the Labrador Sea today. Gale to storm force northeasterlies to
southeasterlies will develop to the north of its track with gale to
storm force southerlies developing to the south of its track.
Storm to hurricane force north to northwesterlies will follow in the
wake of the low.
Marine interests are advised that hurricane force wind warnings are
in effect for North Labrador Coast, South Labrador Sea, and Northwest
Labrador Sea. Storm warnings are in effect for all remaining waters.
Marine interests are also advised that freezing spray warnings are in
effect for all waters except East Labrador Sea.