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James Bay

Warnings

Forecast

Marine Forecast

Issued 05:00 AM CDT 02 July 2025

Today Tonight and Thursday.

Wind light increasing to northwest 15 knots this morning and to northwest 20 this afternoon. Wind diminishing to northwest 15 late overnight and to light Thursday morning. Wind becoming south 15 Thursday evening.

Showers and fog patches ending Thursday morning.

Waves

Issued 05:00 AM CDT 02 July 2025
Today Tonight and Thursday. Over open water seas 1 metre or less building to 2 this evening then subsiding to 1 Thursday morning.

Extended Forecast

Issued 05:00 AM CDT 02 July 2025
Friday Wind south 20 knots increasing to south 30 in the afternoon then diminishing to south 20 late in the day.
Saturday Wind southwest 25 knots diminishing to north 20 late in the day.
Sunday Wind north 20 knots diminishing to light.

Ice Forecast

Issued 11:00 AM EDT 1 July 2025 Today Tonight and Wednesday 2 tenths first-year ice except 5 tenths first-year ice in the northwestern 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
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buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 11:00 AM EDT 1 July 2025 Today Tonight and Wednesday

Ice Edge

Ice edge is outside the forecast region.

Ice Coverage

2 tenths first-year ice except 5 tenths first-year ice in the
northwestern section.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 4:45 AM EDT 2 July 2025 Today Tonight and Thursday At 1200 UTC Wednesday departing low 986 mb located near Ungava Bay.

At 1200 UTC Wednesday ridge located on a line northeast-southwest
over northern Hudson Bay.
By 0000 UTC Friday ridge located on a line north-south over eastern
Hudson Bay.

At 1200 UTC Wednesday low 995 mb located over Boothia Peninsula.
By 0000 UTC Friday low 993 mb located over eastern Baffin Bay.

By 0000 UTC Friday trough located on a line northeast-southwest
over western Hudson Bay.

Hudson - Hudson Bay Area

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Marine Weather for Canada

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