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James Bay

Warnings

Forecast

Marine Forecast

Issued 05:00 AM CDT 21 July 2026

Today Tonight and Wednesday.

Gale warning in effect.

Wind north 35 knots diminishing to north 20 to 25 early this evening and to northwest 15 Wednesday evening.

Rain and fog banks ending near midnight with a risk of thunderstorms.

Waves

Issued 05:00 AM CDT 21 July 2026
Today Tonight and Wednesday. Seas 1 to 2 metres building to 2 to 3 early this morning then subsiding to 1 to 2 Wednesday evening.

Extended Forecast

Issued 05:00 AM CDT 21 July 2026
Thursday Wind northwest 15 knots backing to southwest 10 to 15 in the morning.
Friday Wind southwest 20 to 25 knots diminishing to northeast 15 late in the day.
Saturday Wind southwest 20 to 25 knots becoming north 20 to 25.

Ice Forecast

Issued 11:00 AM EDT 20 July 2026 Today Tonight and Tuesday Open water. 

[ Canadian Ice Service ]

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Weather Conditions

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Map of Hudson - Hudson Bay marine weather areas Fort Severn Airport Churchill Airport Peawanuck Airport Moosonee Airport Coral Harbour Airport Salluit Airport Kuujjuarapik Airport Puvirnituq Airport Umiujaq Airport Aupaluk Airport Kangiqsujuaq Airport Kangirsuk Airport Kangiqsualujjuaq Airport Kuujjuaq Airport Quaqtaq Airport Baker Lake Airport Tasiujaq Airport Cape Kakkiviak Kimmirut Airport Wager Bay Iqaluit Airport Kinngait (Cape Dorset Airport) Whale Cove Airport Sanikiluaq Airport Rankin Inlet Airport Inukjuak Airport Arviat Airport Akulivik Airport Chesterfield Inlet Airport Wemindji Airport Waskaganish Airport La Grande Rivière Airport Eastmain Airport Ivujivik Airport
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 11:00 AM EDT 20 July 2026 Today Tonight and Tuesday

Ice Edge

First ice edge estimated from Quebec near 5459N 7820W to 5708N 7753W
to 5725N 8505W to 6030N 9327W to Manitoba near 5846N 9356W. Sea ice
south of the ice edge.

Second ice edge estimated from Nunavut near 6544N 8626W to
Southampton Island near 6539N 8601W. Sea ice north of the ice edge.

Third ice edge estimated from Southampton Island near 6327N 8057W to
6312N 7910W to Baffin Island near 6419N 7741W. Sea ice north then
west of the ice edge.

Fourth ice edge estimated from Baffin Island near 6204N 6718W to
6109N 6611W to 6114N 6416W to 6136N 6335W then northeastward. Sea
ice north of the ice edge.

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

James Bay

Issued 05:00 AM CDT 21 July 2026

'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.

Synopsis

Technical Marine Synopsis

Issued 4:45 AM EDT 21 July 2026 Today Tonight and Wednesday At 1200 UTC Tuesday low 995 mb located at 58N 56W.
By 0000 UTC Thursday low 1007 mb located at 68N 59W.

At 1200 UTC Tuesday low 991 mb located at 51N 81W.
By 0000 UTC Thursday low 994 mb located at 52N 73W.

Hudson - Hudson Bay Area

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Marine Weather for Canada

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