Marine Forecast
Issued 03:00 AM AST 05 December 2025
Today Tonight and Saturday.
Storm warning in effect.
Wind northwest 45 knots increasing to northwest 55 this morning
then diminishing to northwest 40 early this evening. Wind diminishing to
northwest 30 Saturday morning and to northwest 20 near noon Saturday. Wind
diminishing to light Saturday evening.
Flurries. Visibility 1 mile or less in
flurries.
Freezing spray warning in effect.
Freezing spray ending Saturday morning.
Temperatures zero falling to minus 6 this afternoon then
rising to minus 1 Saturday evening.
Strong wind warning program has ended for the season.
Winds
Issued 03:00 AM AST 05 December 2025
Today Tonight and Saturday.
Storm warning in effect.
Wind northwest 45 knots increasing to northwest 55 this morning
then diminishing to northwest 40 early this evening. Wind diminishing to
northwest 30 Saturday morning and to northwest 20 near noon Saturday. Wind
diminishing to light Saturday evening.
Strong wind warning program has ended for the season.
Waves
Issued 05:00 PM AST 04 December 2025
Cabot Strait - northern half
Tonight and Friday.
Seas 1 to 2 metres building to 2 to 3 this evening and to 4 to 6
late overnight. Seas building to 6 to 8 near noon Friday.
Cabot Strait - southern half
Tonight and Friday.
Seas 1 to 2 metres building to 2 to 3 this evening and to 4 to 6
early Friday morning.
Weather & Visibility
Issued 03:00 AM AST 05 December 2025
Today Tonight and Saturday.
Flurries. Visibility 1 mile or less in
flurries.
Air temperature
Issued 03:00 AM AST 05 December 2025
Today Tonight and Saturday.
Temperatures zero falling to minus 6 this afternoon then
rising to minus 1 Saturday evening.
Freezing Spray
Issued 03:00 AM AST 05 December 2025
Today Tonight and Saturday.
Freezing spray warning in effect.
Freezing spray ending Saturday morning.
Ice Forecasts
Issued 10:00 AM EST 4 December 2025 Today Tonight and Friday Ice Edge
Ice edge estimated from Gaspe Peninsula near 4856N 6712W to 4956N
6635W to 4958N 6014W to Quebec near 5125N 5737W. Sea ice north of
the ice edge.
Iceberg Bulletin
Issued 1:30 PM EST 4 December 2025 Iceberg Limit
Iceberg limit at 0000 UTC 5 Dec estimated from Newfoundland near
4900N 5350W to 4900N 4815W to 5000N 4700W to 5100N 4730W to 5945N
5730W to 6120N 5340W then eastward.Iceberg Count
No confirmed icebergs.
Warnings (In effect)
Cabot Strait
Issued 03:00 AM AST 05 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.
Cabot Strait
Issued 03:00 AM AST 05 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 AST 5 December 2025 Today Tonight and Saturday At 3:00 a.m. AST today departing trough located from Newfoundland
to Banquereau.
At 10:00 a.m. AST today intensifying low 976 mb located over
eastern Newfoundland.
By 10:00 a.m. AST Saturday low 955 mb located east of Newfoundland.
At 3:30 p.m. AST today ridge located west of the Marine District.
By 3:30 p.m. AST Saturday ridge located over the central Marine
District.
Marine Weather Statement
Issued 2:37 AM AST 5 December 2025 An intensifying trough of low pressure extending from Labrador to
Browns Bank will move eastward to lie east of the marine district by
Friday morning. Gale to storm force northwesterlies will develop in
the wake of the trough.
Marine interests are advised that storm warnings are in effect for
Banquereau, Cabot Strait, Gulf-Magdalen - northeastern half, and
Anticosti - southeastern half. Gale warnings are in effect for all
remaining waters.
Marine interests are also advised that freezing spray warnings are in
effect for all waters except Georges Bank, West Scotian Slope, East
Scotian Slope, and Laurentian Fan.