Marine Forecast
Issued 03:00 AM NST 19 December 2025
Today Tonight and Saturday.
Storm warning in effect.
Wind southwest 25 knots increasing to southwest 35 early this
morning then backing to south 45 early this evening. Wind increasing to south 55
near midnight and locally gusts to 65 along the Newfoundland coast. Wind
diminishing to southwest 45 Saturday morning then veering to west 45 Saturday
afternoon.
Showers and fog patches beginning near midnight changing to
flurries near noon Saturday. Visibility 1 mile or less in fog patches and in
flurries.
Freezing spray warning in effect.
Freezing spray over northern sections Saturday
evening.
Temperatures plus 5 falling to minus 5 to zero Saturday
evening.
Winds
Issued 03:00 AM NST 19 December 2025
Today Tonight and Saturday.
Storm warning in effect.
Wind southwest 25 knots increasing to southwest 35 early this
morning then backing to south 45 early this evening. Wind increasing to south 55
near midnight and locally gusts to 65 along the Newfoundland coast. Wind
diminishing to southwest 45 Saturday morning then veering to west 45 Saturday
afternoon.
Waves
Issued 06:00 AM NST 19 December 2025
Today Tonight and Saturday.
Seas 3 to 5 metres building to 5 to 7 near
midnight.
Weather & Visibility
Issued 03:00 AM NST 19 December 2025
Today Tonight and Saturday.
Showers and fog patches beginning near midnight changing to
flurries near noon Saturday. Visibility 1 mile or less in fog patches and in
flurries.
Air temperature
Issued 03:00 AM NST 19 December 2025
Today Tonight and Saturday.
Temperatures plus 5 falling to minus 5 to zero Saturday
evening.
Freezing Spray
Issued 03:00 AM NST 19 December 2025
Today Tonight and Saturday.
Freezing spray warning in effect.
Freezing spray over northern sections Saturday
evening.
Ice Forecasts
Issued 10:00 AM EST 18 December 2025 Today Tonight and Friday 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
Open water except consolidated grey ice along parts of the coasts.
Iceberg Bulletin
Issued 1:30 PM EST 18 December 2025 Iceberg Limit
Iceberg limit at 0000 UTC 19 Dec estimated from Newfoundland near
5020N 5628W to 5030N 5430W to 5330N 5200W to 5945N 5730W to 6155N
5330W to 6005N 4945W to 5900N 4600W then northeastward.Iceberg Count
No confirmed icebergs.
Warnings (In effect)
Gulf - Port au Port
Issued 03:00 AM NST 19 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.
Gulf - Port au Port
Issued 03:00 AM NST 19 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 19 December 2025 Today Tonight and Saturday At 3:00 a.m. NST today trough located east of the Marine District.
By 10:00 a.m. NST today departing trough located east of the
Marine District.
At 3:00 a.m. NST today trough located on a line north-south over
the Great Lakes.
By 3:00 a.m. NST Saturday trough located on a line north-south
over the Maritimes.
At 3:00 a.m. NST today ridge located on a line northwest-southeast
over Newfoundland.
By 8:00 p.m. NST tonight departing ridge located east of Belle
Isle Bank.
Marine Weather Statement
Issued 2:57 AM NST 19 December 2025 A trough of low pressure east of the marine district will move out to
sea today. Strong to gale force northwesterlies over northern waters
will diminish this morning as it departs.
A second trough of low pressure will approach from the west today.
Strong to gale force south to southwesterlies spreading over all
waters today will increase to gale to storm force southerlies tonight
and Saturday ahead of the trough. Winds will diminish to strong to
gale force westerlies in its wake late Saturday.
Marine interests are advised that storm warnings are in effect for
all waters except the 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, Belle
Isle Bank, and Funk Island Bank.
Marine interests are further advised that higher than normal water
levels are expected Saturday 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.