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Colour-coded Weather Alerts

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James Bay - southern half

Warnings

Forecast

Marine Forecast

Issued 05:00 PM CST 06 December 2025

Tonight and Sunday.

Wind west 30 knots tonight. Wind west 25 Sunday.

Flurries.

Freezing spray warning in effect.

Outside the ice edge severe freezing spray becoming moderate near midnight.

Temperatures near minus 14.

Waves

Issued 05:00 AM CST 06 December 2025
Today Tonight and Sunday. Outside the ice edge seas 2 metres building to 3 early this evening then subsiding to 1 near midnight.

Extended Forecast

Issued 05:00 PM CST 06 December 2025
Monday Wind west 25 knots increasing to west 35 in the morning then diminishing to west 25 in the afternoon.
Tuesday Wind west 20 knots diminishing to light.
Wednesday Wind light.

Ice Forecast

Issued 11:00 AM EST 6 December 2025 Today Tonight and Sunday 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-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
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

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-white ice along parts of the coasts.

Warnings

Warnings (In effect)

Freezing spray warning in effect

James Bay - southern 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 AM EST 7 December 2025 Today Tonight and Monday At 1200 UTC Sunday quasi-stationary low 992 mb located near
Puvirnituq.

At 0000 UTC Tuesday merging low 985 mb located over the Ungava
Peninsula.

Hudson - Hudson Bay Area

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Marine Weather for Canada

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