Marine Forecast
Issued 09:49 AM EST 20 December 2025
Today Tonight and Sunday.
Storm warning in effect.
Wind southwest 35 to 45 knots except west 55 near the mouth of
the Saguenay River. Wind becoming west 25 to 35 near noon then diminishing to
west 15 to 25 this afternoon. Wind diminishing to south 10 to 15 early this
evening then increasing to west 15 to 25 Sunday evening except west 35 near the
mouth of the Saguenay River.
Snow tonight and Sunday. Visibility 1 mile or less in
snow.
Freezing spray warning in effect.
Freezing spray ending this afternoon.
Temperatures minus 6 rising to zero Sunday
morning.
Strong wind warning program has ended for the season.
Winds
Issued 09:49 AM EST 20 December 2025
Today Tonight and Sunday.
Storm warning in effect.
Wind southwest 35 to 45 knots except west 55 near the mouth of
the Saguenay River. Wind becoming west 25 to 35 near noon then diminishing to
west 15 to 25 this afternoon. Wind diminishing to south 10 to 15 early this
evening then increasing to west 15 to 25 Sunday evening except west 35 near the
mouth of the Saguenay River.
Strong wind warning program has ended for the season.
Waves
Issued 03:00 AM EST 20 December 2025
Today Tonight and Sunday.
Over open water seas 2 metres subsiding to 1 this afternoon then
building to 1 to 2 Sunday evening.
Weather & Visibility
Issued 09:49 AM EST 20 December 2025
Today Tonight and Sunday.
Snow tonight and Sunday. Visibility 1 mile or less in
snow.
Air temperature
Issued 09:49 AM EST 20 December 2025
Today Tonight and Sunday.
Temperatures minus 6 rising to zero Sunday
morning.
Freezing Spray
Issued 09:49 AM EST 20 December 2025
Today Tonight and Sunday.
Freezing spray warning in effect.
Freezing spray ending this afternoon.
Ice Forecasts
Issued 10:00 AM EST 20 December 2025 Today Tonight and Sunday 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 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.
Ice Coverage
Open water except 1 tenth grey ice along parts of the coasts.
Warnings (In effect)
Tadoussac to Pointe à Michel
Issued 09:49 AM EST 20 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.
Tadoussac to Pointe à Michel
Issued 09:49 AM EST 20 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 20 December 2025 Today Tonight and Sunday At 3:00 a.m. EST today low 966 mb located over western Labrador.
By 7:00 p.m. EST tonight departing low 950 mb located over
Labrador Sea.
At 3:00 a.m. EST today ridge located on a line north-south over
the eastern Great Lakes.
By 7:00 p.m. EST Sunday ridge located east of Newfoundland.
At 3:00 a.m. EST today low 994 mb located over southeastern
Manitoba.
By 7:00 p.m. EST Sunday low 1003 mb located over western
Newfoundland.