Marine Forecast
Issued 03:00 AM EST 13 December 2025
Today Tonight and Sunday.
Wind west 20 to 30 knots diminishing to west 15 to 20 this
morning then veering to northwest 15 early this evening. Wind diminishing to
light overnight then becoming northerly 15 Sunday evening.
Freezing spray warning in effect.
Freezing spray ending near noon. Risk of freezing spray this
afternoon.
Temperatures near minus 6.
Strong wind warning program has ended for the season.
Winds
Issued 03:00 AM EST 13 December 2025
Today Tonight and Sunday.
Wind west 20 to 30 knots diminishing to west 15 to 20 this
morning then veering to northwest 15 early this evening. Wind diminishing to
light overnight then becoming northerly 15 Sunday evening.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EST 13 December 2025
Today Tonight and Sunday.
Seas 2 metres subsiding to 1 near midnight.
Air temperature
Issued 03:00 AM EST 13 December 2025
Today Tonight and Sunday.
Temperatures near minus 6.
Freezing Spray
Issued 03:00 AM EST 13 December 2025
Today Tonight and Sunday.
Freezing spray warning in effect.
Freezing spray ending near noon. Risk of freezing spray this
afternoon.
Ice Forecasts
Issued 10:00 AM EST 12 December 2025 Today Tonight and Saturday 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 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 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 Newfoundland near 5029N 5728W. Sea ice
north of the ice edge.
Ice Coverage
Open water except 5 tenths new ice including 2 tenths grey ice along
parts of the coast.
Warnings (In effect)
Pointe-des-Monts to Anticosti - northern half
Issued 03:00 AM EST 13 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 EST 13 December 2025 Today Tonight and Sunday At 3:00 a.m. EST today ridge located over Montréal.
By 7:00 p.m. EST tonight dissipating ridge located over Matane.
At 3:00 a.m. EST today low 1004 mb located over western Ontario.
By 3:00 a.m. EST Sunday dissipating low 1013 mb located over
Québec city.
At 7:00 a.m. EST Sunday ridge located from the Midwestern states
to Hudson Bay.
By 7:00 p.m. EST Sunday ridge located from the Great Lakes to
Ungava Bay.