Marine Forecast
Issued 05:00 AM EST 20 December 2025
Today Tonight and Sunday.
Storm warning in effect.
Wind east 20 knots increasing to east 30 this morning and to
northeast 40 near noon. Wind increasing to northeast 50 early this evening then
diminishing to northwest 45 near noon Sunday.
Snow changing to rain near midnight then to flurries near
noon Sunday. Visibility 1 mile or less in snow.
Freezing spray warning in effect.
Moderate freezing spray beginning near noon Sunday becoming
severe Sunday afternoon.
Temperatures minus 4 rising to plus 4 near midnight then
falling to minus 7 Sunday evening.
Winds
Issued 05:00 AM EST 20 December 2025
Today Tonight and Sunday.
Storm warning in effect.
Wind east 20 knots increasing to east 30 this morning and to
northeast 40 near noon. Wind increasing to northeast 50 early this evening then
diminishing to northwest 45 near noon Sunday.
Waves
Issued 05:00 AM EST 20 December 2025
Today Tonight and Sunday.
Seas 1 metre building to 2 near noon and to 4 early this evening.
Seas building to 6 near midnight and to 8 Sunday morning.
Weather & Visibility
Issued 05:00 AM EST 20 December 2025
Today Tonight and Sunday.
Snow changing to rain near midnight then to flurries near
noon Sunday. Visibility 1 mile or less in snow.
Air temperature
Issued 05:00 AM EST 20 December 2025
Today Tonight and Sunday.
Temperatures minus 4 rising to plus 4 near midnight then
falling to minus 7 Sunday evening.
Freezing Spray
Issued 05:00 AM EST 20 December 2025
Today Tonight and Sunday.
Freezing spray warning in effect.
Moderate freezing spray beginning near noon Sunday becoming
severe Sunday afternoon.
Ice Forecasts
Issued 11:00 AM EST 20 December 2025 Today Tonight and Sunday Ice Edge
Ice edge estimated from 6200N 5947W to 6312N 5752W then
northeastward. Sea ice northwest of the ice edge.
Ice Coverage
Bergy water except 2 tenths new ice in the extreme northwestern
section.
Warnings (In effect)
Central Brevoort - southern half
Issued 05:00 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.
Central Brevoort - southern half
Issued 05:00 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 4:45 AM EST 20 December 2025 Today Tonight and Sunday At 1200 UTC Saturday quasi-stationary low 985 mb located at 65N 75W.
At 1200 UTC Saturday low 958 mb located at 54N 62W.
By 0000 UTC Monday low 964 mb located at 65N 56W.