Marine Forecast
Issued 08:00 PM AST 09 December 2025
Tonight and Wednesday.
Wind westerly 15 knots increasing to southwest 20 to 25 late
this evening then backing to southerly 30 late overnight. Wind diminishing to
westerly 15 late Wednesday morning then increasing to south 20 to 25 late
Wednesday afternoon. Wind increasing to south 30 Wednesday
evening.
Showers or flurries overnight and Wednesday morning.
Showers Wednesday evening.
Temperatures minus 4 rising to plus 8 Wednesday
evening.
Strong wind warning program has ended for the season.
Winds
Issued 08:00 PM AST 09 December 2025
Tonight and Wednesday.
Wind westerly 15 knots increasing to southwest 20 to 25 late
this evening then backing to southerly 30 late overnight. Wind diminishing to
westerly 15 late Wednesday morning then increasing to south 20 to 25 late
Wednesday afternoon. Wind increasing to south 30 Wednesday
evening.
Strong wind warning program has ended for the season.
Waves
Issued 05:00 PM AST 09 December 2025
Tonight and Wednesday.
Seas 1 metre or less building to 1 to 2 near midnight and to 2 to
3 late overnight.
Weather & Visibility
Issued 08:00 PM AST 09 December 2025
Tonight and Wednesday.
Showers or flurries overnight and Wednesday morning.
Showers Wednesday evening.
Air temperature
Issued 08:00 PM AST 09 December 2025
Tonight and Wednesday.
Temperatures minus 4 rising to plus 8 Wednesday
evening.
Ice ForecastsIssued 10:00 AM EST 9 December 2025 Today Tonight and Wednesday Ice EdgeFirst 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 4551N 6201W 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 4741N 6431W to 4827N 6402W 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 4949N 6317W to 4946N 5954W to 5106N 5804W to Newfoundland near 5029N 5728W. Sea ice north of the ice edge.
No watches or warnings in effect.
Technical Marine SynopsisIssued 8:00 PM AST 9 December 2025 Tonight and Wednesday At 8:00 p.m. AST tonight departing low 962 mb located northeast of Newfoundland.
At 8:00 p.m. AST tonight ridge located over the southwestern Marine District. By 3:00 a.m. AST Wednesday ridge located south of the Marine District.
At 8:00 p.m. AST tonight approaching trough located over New England.
Marine Weather StatementIssued 7:48 PM AST 9 December 2025 A low pressure system northeast of Newfoundland will continue to pull further away tonight. Strong to gale force northwesterlies will diminish this evening in the wake of the low.
A trough of low pressure will approach tonight and cross the marine district Wednesday. Strong to potentially gale force southwesterlies will develop ahead of this feature.
Marine interests are advised that gale warnings are in effect for Cabot Strait and Anticosti.
Freezing spray warnings are in effect for Cabot Strait and all Gulf of St. Lawrence waters.
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