Marine Forecast
Issued 10:00 AM AST 17 December 2025
Today Tonight and Thursday.
Wind southwest 30 knots veering to northwest 25 near midnight
then diminishing to northwest 15 Thursday morning. Wind diminishing to light
near noon Thursday then increasing to southwest 20 Thursday
evening.
High today plus 6. Low tonight plus 1. High Thursday
plus 6.
Strong wind warning program has ended for the season.
Winds
Issued 10:00 AM AST 17 December 2025
Today Tonight and Thursday.
Wind southwest 30 knots veering to northwest 25 near midnight
then diminishing to northwest 15 Thursday morning. Wind diminishing to light
near noon Thursday then increasing to southwest 20 Thursday
evening.
Strong wind warning program has ended for the season.
Air temperature
Issued 10:00 AM AST 17 December 2025
Today Tonight and Thursday.
High today plus 6. Low tonight plus 1. High Thursday
plus 6.
Ice ForecastsIssued 10:00 AM EST 17 December 2025 Today Tonight and Thursday 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 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.
No watches or warnings in effect.
Technical Marine SynopsisIssued 10:00 AM AST 17 December 2025 Today Tonight and Thursday At 10:00 a.m. AST today trough located on a line northeast-southwest over Quebec. By 3:00 a.m. AST Thursday trough located from Newfoundland to Georges Bank.
Marine Weather StatementIssued 9:38 AM AST 17 December 2025 A trough of low pressure over Quebec will move southeast and cross the marine district tonight. Strong to gale force southwesterlies will develop today ahead of the trough and shift to strong to gale force northwesterlies in its wake.
Marine interests are advised that gale warnings are in effect for all waters except Northumberland Strait and Chaleur - Miscou.
Marine interests are also advised that a freezing spray warning is in effect for Anticosti - northwestern half.
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