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James Bay

Warnings

Forecast

Marine Forecast

Issued 05:00 AM CST 15 December 2025

Today Tonight and Tuesday.

Wind southwest 20 knots diminishing to southwest 15 this morning then veering to northwest 20 early this evening. Wind backing to west 15 late this evening then increasing to south 25 Tuesday morning. Wind increasing to south 30 near noon Tuesday then diminishing to southwest 20 Tuesday evening.

Periods of snow ending near noon. Snow Tuesday afternoon and evening. Visibility 1 mile or less in snow.

Freezing spray warning in effect.

Outside the ice edge freezing spray ending this morning. Freezing spray late this afternoon and this evening. Freezing spray Tuesday morning.

High today minus 8. Low tonight minus 13. High Tuesday minus 2.

Waves

Issued 05:00 PM CST 14 December 2025
Tonight and Monday. Outside the ice edge seas 1 metre.

Extended Forecast

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

Ice Forecast

Issued 11:00 AM EST 14 December 2025 Today Tonight and Monday 6 tenths grey-white ice. Consolidated grey-white 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
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buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 11:00 AM EST 14 December 2025 Today Tonight and Monday

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

6 tenths grey-white ice. Consolidated grey-white ice along parts of
the coasts.

Warnings

Warnings (In effect)

Freezing spray warning in effect

James Bay

Issued 05:00 AM CST 15 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 15 December 2025 Today Tonight and Tuesday At 1200 UTC Monday quasi-stationary trough from low located over
western Greenland.

At 1200 UTC Monday trough from 997 mb low located from 66N 75W to
55N 81W.
By 0000 UTC Wednesday trough from 992 mb low located from Foxe
Basin to Hudson Strait.

By 0000 UTC Wednesday low 979 mb located over eastern Hudson Bay.

Hudson - Hudson Bay Area

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Marine Weather for Canada

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