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James Bay - southern half

Warnings

Forecast

Marine Forecast

Issued 05:00 AM CST 10 December 2025

Today Tonight and Thursday.

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

Flurries.

Freezing spray warning in effect.

Outside the ice edge freezing spray this afternoon.

Temperatures minus 6 rising to zero Thursday afternoon.

Waves

Issued 05:00 PM CST 09 December 2025
Tonight and Wednesday. Outside the ice edge seas 1 metre.

Extended Forecast

Issued 05:00 AM CST 10 December 2025
Friday Wind northwest 25 knots diminishing to west 15 late in the day.
Saturday Wind light increasing to northwest 20 knots.
Sunday Wind northwest 20 knots increasing to northwest 25 late in the day.

Ice Forecast

Issued 11:00 AM EST 9 December 2025 Today Tonight and Wednesday 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 9 December 2025 Today Tonight and Wednesday

Ice Edge

Ice edge estimated from Killiniq Island near 6025N 6454W to 5915N
6734W to Baffin Island near 6152N 6608W. Sea ice southeast 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 10 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 10 December 2025 Today Tonight and Thursday At 1200 UTC Wednesday quasi-stationary trough from low located
from 58N 52W to 59N 70W.

At 1200 UTC Thursday approaching high 1026 mb located at 67N 91W.

Hudson - Hudson Bay Area

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Marine Weather for Canada

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