Marine Forecast
Issued 08:00 PM AST 09 December 2025
Tonight and Wednesday.
Wind light increasing to southwest 15 to 20 knots late this
evening and to southwest 25 late overnight. Wind diminishing to southwest 15 to
20 Wednesday afternoon then backing to south 25 Wednesday evening.
Showers Wednesday.
Winds
Issued 08:00 PM AST 09 December 2025
Tonight and Wednesday.
Wind light increasing to southwest 15 to 20 knots late this
evening and to southwest 25 late overnight. Wind diminishing to southwest 15 to
20 Wednesday afternoon then backing to south 25 Wednesday evening.
Waves
Issued 05:00 PM AST 09 December 2025
Tonight and Wednesday.
Seas 1 to 2 metres building to 2 to 3 Wednesday
morning.
Weather & Visibility
Issued 08:00 PM AST 09 December 2025
Tonight and Wednesday.
Showers Wednesday.
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.
Iceberg BulletinIssued 1:30 PM EST 9 December 2025 Iceberg LimitIceberg limit at 0000 UTC 10 Dec estimated from Newfoundland near 4745N 5245W to 4800N 5100W to 5300N 5015W to 5945N 5730W then northeastward.Iceberg CountNo confirmed icebergs.
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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