Marine Forecast
Issued 05:00 AM CST 06 December 2025
Today Tonight and Sunday.
Wind west 25 knots increasing to west 30 early this evening.
Wind west 25 Sunday.
Flurries. Fog patches forming Sunday evening. Visibility 1
mile or less in flurries and in fog patches.
Freezing spray warning in effect.
Outside the ice edge moderate freezing spray becoming severe
this morning then becoming moderate near midnight.
Temperatures minus 6 falling to minus 16 near noon then rising
to minus 11 Sunday evening.
Winds
Issued 05:00 AM CST 06 December 2025
Today Tonight and Sunday.
Wind west 25 knots increasing to west 30 early this evening.
Wind west 25 Sunday.
Waves
Issued 05:00 AM CST 06 December 2025
Today Tonight and Sunday.
Outside the ice edge seas 2 metres building to 3 early this
evening then subsiding to 1 near midnight.
Weather & Visibility
Issued 05:00 AM CST 06 December 2025
Today Tonight and Sunday.
Flurries. Fog patches forming Sunday evening. Visibility 1
mile or less in flurries and in fog patches.
Air temperature
Issued 05:00 AM CST 06 December 2025
Today Tonight and Sunday.
Temperatures minus 6 falling to minus 16 near noon then rising
to minus 11 Sunday evening.
Freezing Spray
Issued 05:00 AM CST 06 December 2025
Today Tonight and Sunday.
Freezing spray warning in effect.
Outside the ice edge moderate freezing spray becoming severe
this morning then becoming moderate near midnight.
Ice Forecasts
Issued 11:00 AM EST 5 December 2025 Today Tonight and Saturday Ice Edge
Ice edge estimated from Quebec near 6025N 6454W to 5917N 6657W to
5931N 6815W to 6115N 6915W to 6215N 6924W to Baffin Island near
6156N 6636W. Sea ice south then north of the ice edge.
Ice Coverage
4 tenths grey ice including 1 tenth grey-white ice except 9 tenths
grey ice including 1 tenth grey-white ice in the western section.
Consolidated grey-white ice along parts of the coasts.
Warnings (In effect)
James Bay - southern half
Issued 05:00 AM CST 06 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 6 December 2025 Today Tonight and Sunday At 1200 UTC Saturday quasi-stationary trough from 989 mb low
located from Hudson Bay to Boothia Peninsula.