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James Bay

Warnings

Forecast

Marine Forecast

Issued 05:00 AM CDT 22 July 2026

Today Tonight and Thursday.

Gale warning in effect.

Wind northwest 35 knots diminishing to northwest 30 early this morning and to northwest 15 to 20 late overnight. Wind backing to southwest 10 to 15 Thursday afternoon.

Rain ending this evening. Showers Thursday. Fog patches dissipating near noon. Fog banks forming Thursday evening.

Waves

Issued 05:00 AM CDT 22 July 2026
Today Tonight and Thursday. Seas 2 to 3 metres subsiding to 1 to 2 late overnight.

Extended Forecast

Issued 05:00 AM CDT 22 July 2026
Friday Wind southwest 10 to 15 knots backing to southeast 15 in the morning then increasing to south 30 late in the day.
Saturday Wind south 30 knots diminishing to north 20 to 25.
Sunday Wind northwest 15 knots backing to southwest 15.

Ice Forecast

Issued 11:00 AM EDT 21 July 2026 Today Tonight and Wednesday 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 21 July 2026 Today Tonight and Wednesday

Ice Edge

First ice edge estimated from Quebec near 5500N 7821W to 5714N 7839W
to 5654N 8327W to 5815N 8753W to 5955N 9205W to Manitoba near 5846N
9357W. 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 northwest of the ice edge.

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

James Bay

Issued 05:00 AM CDT 22 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 22 July 2026 Today Tonight and Thursday At 1200 UTC Wednesday weakening low 1003 mb located at 66N 59W.
By 0000 UTC Friday low 1015 mb located at 72N 67W.

At 1200 UTC Wednesday deepening low 993 mb located at 53N 76W.
By 0000 UTC Friday low 991 mb located at 59N 68W.

Hudson - Hudson Bay Area

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Marine Weather for Canada

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