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James Bay - northern half

Warnings

Forecast

Marine Forecast

Issued 05:00 PM CST 06 December 2025

Tonight and Sunday.

Gale warning in effect.

Wind west 30 knots increasing to west 35 Sunday evening.

Flurries changing to snow early Sunday morning then to flurries Sunday morning. Snow Sunday evening. Visibility 1 mile or less in precipitation.

Freezing spray warning in effect.

Outside the ice edge severe freezing spray.

Low tonight minus 14. High Sunday minus 7.

Waves

Issued 05:00 AM CST 06 December 2025
Today Tonight and Sunday. Outside the ice edge seas 2 to 3 metres.

Extended Forecast

Issued 05:00 PM CST 06 December 2025
Monday Wind west 35 knots.
Tuesday Wind west 15 to 20 knots.
Wednesday Wind west 15 to 20 knots.

Ice Forecast

Issued 11:00 AM EST 6 December 2025 Today Tonight and Sunday 1 tenth new ice except 9 tenths new ice including 3 tenths grey ice along the coast in the western section. 

[ 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 6 December 2025 Today Tonight and Sunday

Ice Edge

Ice edge estimated from Quebec near 6025N 6454W to 5936N 6647W to
6037N 6737W to 6115N 6915W to 6200N 6903W to 6142N 6642W to Baffin
Island near 6152N 6608W. Sea ice south then north of the ice edge.

Ice Coverage

1 tenth new ice except 9 tenths new ice including 3 tenths grey ice
along the coast in the western section.

Warnings

Warnings (In effect)

Gale warning in effect

James Bay - northern half

Issued 5:00 PM CST 06 December 2025

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Freezing spray warning in effect

James Bay - northern half

Issued 5:00 PM CST 06 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 6 December 2025 Tonight and Sunday At 0000 UTC Sunday quasi-stationary trough from 989 mb low located
from Hudson Bay to Boothia Peninsula.

At 0000 UTC Sunday quasi-stationary ridge located over eastern
Baffin Island.

At 0000 UTC Sunday trough located from Labrador Sea to Cumberland
Peninsula.
By 0000 UTC Monday trough located from Labrador Sea to Iqaluit
then to Hudson Strait.

Hudson - Hudson Bay Area

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Marine Weather for Canada

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