Marine Forecast
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Wind northwest 30 knots diminishing to west 15 to 20 early this
morning then increasing to southwest 30 near midnight. Wind diminishing to
southwest 15 Friday afternoon.
Flurries overnight and Friday. Fog patches dissipating
early this morning.
Freezing spray warning in effect.
Outside the ice edge moderate at times severe freezing
spray.
Temperatures minus 12 rising to minus 8 Friday
morning.
Winds
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Wind northwest 30 knots diminishing to west 15 to 20 early this
morning then increasing to southwest 30 near midnight. Wind diminishing to
southwest 15 Friday afternoon.
Waves
Issued 05:00 PM EST 17 December 2025
Tonight and Thursday.
Outside the ice edge seas 2 to 3 metres subsiding to 1 to 2 early
Thursday morning.
Weather & Visibility
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Flurries overnight and Friday. Fog patches dissipating
early this morning.
Air temperature
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Temperatures minus 12 rising to minus 8 Friday
morning.
Freezing Spray
Issued 05:00 AM EST 18 December 2025
Today Tonight and Friday.
Freezing spray warning in effect.
Outside the ice edge moderate at times severe freezing
spray.
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
2 tenths new ice except 5 tenths new ice including 2 tenths grey ice
in the extreme western section.
Warnings (In effect)
Frobisher Bay
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.