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James Bay - southern half

Warnings

Forecast

Marine Forecast

Issued 05:00 AM CST 09 December 2025

Today Tonight and Wednesday.

Wind west 10 to 15 knots increasing to west 20 to 25 early this evening then veering to north 25 Wednesday morning. Wind diminishing to northeast 15 Wednesday afternoon and to light Wednesday evening.

Flurries.

Freezing spray warning in effect.

Outside the ice edge freezing spray ending overnight. Freezing spray Wednesday morning and afternoon.

Temperatures minus 12 rising to minus 3 Wednesday morning then falling to minus 8 Wednesday afternoon.

Waves

Issued 05:00 PM CST 08 December 2025
Tonight and Tuesday. Outside the ice edge seas 1 metre.

Extended Forecast

Issued 05:00 AM CST 09 December 2025
Thursday Wind light increasing to northwest 15 to 20 knots in the morning.
Friday Wind northwest 15 to 20 knots diminishing to light.
Saturday Wind northwest 25 to 30 knots diminishing to west 20 late in the day.

Ice Forecast

Issued 11:00 AM EST 8 December 2025 Today Tonight and Tuesday 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 ice along parts of the coasts. 

[ Canadian Ice Service ]

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Map of Hudson - Hudson Bay marine weather areas Akulivik Airport Coral Harbour Airport Eastmain Airport Inukjuak Airport La Grande Rivière Airport Moosonee Airport Peawanuck Airport Fort Severn Airport Waskaganish Airport Churchill Airport Wemindji Airport Baker Lake Airport Rankin Inlet Airport Sanikiluaq Airport Whale Cove Airport Kinngait (Cape Dorset Airport) Iqaluit Airport Wager Bay Kimmirut Airport Cape Kakkiviak Tasiujaq Airport Salluit Airport Quaqtaq Airport Kuujjuaq Airport Kangiqsualujjuaq Airport Kangirsuk Airport Kangiqsujuaq Airport Kuujjuarapik Airport Puvirnituq Airport Aupaluk Airport Chesterfield Inlet Airport Ivujivik Airport Umiujaq Airport Arviat Airport
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 11:00 AM EST 8 December 2025 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from Killiniq Island near 6025N 6454W to 5915N
6734W to Baffin Island near 6152N 6608W. Sea ice east then west 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 ice along parts of the coasts.

Warnings

Warnings (In effect)

Freezing spray warning in effect

James Bay - southern half

Issued 05:00 AM CST 09 December 2025

Moderate 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.

Synopsis

Technical Marine Synopsis

Issued 4:45 AM EST 9 December 2025 Today Tonight and Wednesday At 1200 UTC Tuesday low 982 mb located at 57N 77W.
By 0000 UTC Thursday weakening low 1007 mb located at 50N 81W.

By 0000 UTC Wednesday low 991 mb located at 57N 60W.

Hudson - Hudson Bay Area

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