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James Bay - northern half

Forecast

Marine Forecast

Issued 05:00 PM CST 11 December 2025

Tonight and Friday.

Wind north 25 knots backing to northwest 15 to 20 near midnight. Wind northwest 15 to 20 Friday.

Snow. Visibility as low as 1 mile in snow.

Freezing spray warning in effect.

Over open water freezing spray ending near midnight.

Temperatures near minus 3.

Waves

Issued 05:00 AM CST 11 December 2025
Today Tonight and Friday. Outside the ice edge seas 1 metre.

Extended Forecast

Issued 05:00 PM CST 11 December 2025
Saturday Wind northwest 15 to 20 knots.
Sunday Wind northwest 15 to 20 knots backing to west 15 late in the day.
Monday Wind southwest 20 to 25 knots.

Ice Forecast

Issued 11:00 AM EST 11 December 2025 Today Tonight and Friday 3 tenths grey ice including 1 tenth grey-white ice except 9 tenths grey ice including 2 tenths grey-white ice in the western section. Consolidated grey-white ice along parts of the coasts. 

[ Canadian Ice Service ]

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Weather Conditions

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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
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Ice Conditions

Ice Forecasts

Issued 11:00 AM EST 11 December 2025 Today Tonight and Friday

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

3 tenths grey ice including 1 tenth grey-white ice except 9 tenths
grey ice including 2 tenths grey-white ice in the western section.
Consolidated grey-white ice along parts of the coasts.

Warnings

Warnings (In effect)

Freezing spray warning in effect

James Bay - northern half

Issued 5:00 PM CST 11 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 PM EST 11 December 2025 Tonight and Friday At 0000 UTC Friday quasi-stationary trough from low located from
60N 50W to 56N 80W.

At 0000 UTC Friday quasi-stationary ridge from 1026 mb high located
at 67N 91W.

By 0000 UTC Friday low 1013 mb located at 61N 93W.

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