Marine Forecast
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Gale warning in effect.
Wind east 30 to 40 knots becoming west 30 early this morning
then diminishing to east 10 to 15 this evening. Wind becoming variable 10 to 15
Friday afternoon then becoming light Friday evening.
Periods of snow ending Friday morning. Periods of snow
Friday evening. Fog patches forming overnight and dissipating Friday afternoon.
Visibility 1 mile or less in snow and in fog patches.
Freezing spray warning in effect.
Outside the ice edge severe freezing spray becoming moderate
this evening.
High today minus 5. Low tonight minus 17. High Friday
minus 11.
Winds
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Gale warning in effect.
Wind east 30 to 40 knots becoming west 30 early this morning
then diminishing to east 10 to 15 this evening. Wind becoming variable 10 to 15
Friday afternoon then becoming light Friday evening.
Waves
Issued 05:00 PM EST 17 December 2025
Tonight and Thursday.
Outside the ice edge seas 3 to 4 metres subsiding to 2 to 3 early
Thursday morning and to 1 to 2 Thursday evening.
Weather & Visibility
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Periods of snow ending Friday morning. Periods of snow
Friday evening. Fog patches forming overnight and dissipating Friday afternoon.
Visibility 1 mile or less in snow and in fog patches.
Air temperature
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
High today minus 5. Low tonight minus 17. High Friday
minus 11.
Freezing Spray
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Freezing spray warning in effect.
Outside the ice edge severe freezing spray becoming moderate
this evening.
Ice Forecasts
Issued 11:00 AM EST 17 December 2025 Today Tonight and Thursday Ice Edge
Ice edge estimated from 6200N 5947W to 6312N 5752W then
northeastward. Sea ice northwest of the ice edge.
Ice Coverage
6 tenths new ice including 1 tenth grey ice. Consolidated grey ice
in a few sheltered bays.
Warnings (In effect)
Cumberland
Issued 05:00 AM EST 18 December 2025'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.
Cumberland
Issued 05:00 AM EST 18 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 4:45 AM EST 18 December 2025 Today Tonight and Friday At 1200 UTC Thursday low 970 mb located at 65N 65W.
By 0000 UTC Saturday low 991 mb located at 65N 68W.
By 0000 UTC Saturday low 994 mb located at 75N 65W.
At 1200 UTC Thursday ridge from 1027 mb high located from 55N 96W
to 54N 81W.
By 0000 UTC Saturday high 1015 mb located at 53N 88W.