Marine Forecast
Issued 03:00 AM NST 20 December 2025
Today Tonight and Sunday.
Storm warning in effect.
Wind south 45 to 55 knots and locally gusts to 65 along the
Newfoundland coast. Wind becoming southwest 45 this morning and locally gusts to
55 along the Newfoundland coast. Wind becoming west 45 early this evening then
diminishing to west 35 near midnight. Wind diminishing to west 25 overnight then
backing to southwest 15 to 20 Sunday morning. Wind increasing to southwest 25
Sunday afternoon except northwest 25 over northwestern sections.
Showers and fog patches changing to flurries near noon and
ending this evening. Periods of snow Sunday. Visibility 1 mile or less in fog
patches and in precipitation.
Freezing spray warning in effect.
Freezing spray over northwestern sections tonight and
Sunday.
Temperatures plus 7 falling to minus 10 to minus 5 overnight
then rising to minus 6 to plus 1 Sunday afternoon.
Winds
Issued 03:00 AM NST 20 December 2025
Today Tonight and Sunday.
Storm warning in effect.
Wind south 45 to 55 knots and locally gusts to 65 along the
Newfoundland coast. Wind becoming southwest 45 this morning and locally gusts to
55 along the Newfoundland coast. Wind becoming west 45 early this evening then
diminishing to west 35 near midnight. Wind diminishing to west 25 overnight then
backing to southwest 15 to 20 Sunday morning. Wind increasing to southwest 25
Sunday afternoon except northwest 25 over northwestern sections.
Waves
Issued 06:00 AM NST 20 December 2025
Today Tonight and Sunday.
Seas 5 to 7 metres subsiding to 3 to 5 near midnight and to 2 to
3 Sunday morning.
Weather & Visibility
Issued 03:00 AM NST 20 December 2025
Today Tonight and Sunday.
Showers and fog patches changing to flurries near noon and
ending this evening. Periods of snow Sunday. Visibility 1 mile or less in fog
patches and in precipitation.
Air temperature
Issued 03:00 AM NST 20 December 2025
Today Tonight and Sunday.
Temperatures plus 7 falling to minus 10 to minus 5 overnight
then rising to minus 6 to plus 1 Sunday afternoon.
Freezing Spray
Issued 03:00 AM NST 20 December 2025
Today Tonight and Sunday.
Freezing spray warning in effect.
Freezing spray over northwestern sections tonight and
Sunday.
Ice Forecasts
Issued 10:00 AM EST 19 December 2025 Today Tonight and Saturday Ice Edge
First ice edge estimated from 4723N 6136W to 4738N 6112W to 4744N
6124W to 4734N 6159W to 4706N 6212W to 4706N 6147W to 4723N 6136W.
Sea ice within the ice edge.
Second ice edge estimated from Nova Scotia near 4540N 6136W to
Prince Edward Island near 4621N 6211W. Sea ice west of the ice edge.
Third ice edge estimated from Prince Edward Island near 4628N 6231W
to 4640N 6329W to 4736N 6409W to 4904N 6404W to 4925N 6516W to 4916N
6703W to 4956N 6635W to Anticosti Island near 4924N 6336W. Sea ice
west then north of the ice edge.
Fourth ice edge estimated from Anticosti Island near 4945N 6301W to
4946N 5954W to 5106N 5804W to 5035N 5733W to 4818N 5929W to 4731N
5923W to Newfoundland near 4736N 5740W. Sea ice north then east of
the ice edge.
Ice Coverage
Bergy water except consolidated grey ice along parts of the coasts.
Iceberg Bulletin
Issued 1:30 PM EST 19 December 2025 Iceberg Limit
Iceberg limit at 0000 UTC 20 Dec estimated from Newfoundland near
5020N 5628W to 5030N 5415W to 5330N 5200W to 5945N 5730W then
northeastward.Iceberg Count
No confirmed icebergs except less than 10 icebergs northeast of the
western iceberg limit.
Warnings (In effect)
Northeast Gulf
Issued 03:00 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.
Northeast Gulf
Issued 03:00 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.
Technical Marine Synopsis
Issued 3:00 AM NST 20 December 2025 Today Tonight and Sunday At 3:00 a.m. NST today deepening low 966 mb located over western
Labrador.
By 3:00 a.m. NST Sunday low 948 mb located over eastern Labrador
Sea.
At 3:00 a.m. NST today trough from 966 mb low located on a line
north-south over the Gulf of St. Lawrence.
By 3:00 a.m. NST Sunday trough from 948 mb low located north of
the Marine District.
At 8:00 p.m. NST tonight building ridge located over the Maritimes.
Marine Weather Statement
Issued 2:59 AM NST 20 December 2025 A trough of low pressure associated with a rapidly intensifying low
over Western Labrador will a cross the district today. Strong to gale
force southerlies to southwesterlies will increase to gale to storm
force southerlies ahead of the trough. Winds will shift to gale to
storm force westerlies in its wake and then diminish to moderate to
strong west to southwesterlies as it departs.
Marine interests are advised that storm warnings are in effect for
all waters except Southeastern Grand Banks where a gale warning is in
effect.
Marine interests are also advised that freezing spray warnings are in
effect for Strait of Belle Isle, Gulf waters, Northeast Coast, and
Belle Isle Bank.
Marine interests are further advised that higher than normal water
levels are expected this morning along the west coast of Newfoundland
including the western side of the Great Northern Peninsula, as well
as both sides of the Strait of Belle Isle. This is due to a
combination of high waves and pounding surf, storm surge, and a
higher run of tides.