James Bay - northern half


Marine Forecast

Issued 05:00 AM CDT 31 August 2015

Today Tonight and Tuesday

Gale warning in effect.

Wind north 20 knots veering to east 15 late this morning then diminishing to light late this afternoon. Wind increasing to southeast 20 early this evening and to south 35 after midnight. Wind diminishing to southwest 25 late overnight then veering to northwest 25 Tuesday afternoon.

Fog forming late overnight and dissipating Tuesday afternoon.


Issued 05:00 AM CDT 31 August 2015
Today Tonight and Tuesday Seas 2 metres subsiding to 1 late this morning then building to 2 after midnight.

Extended Forecast

Issued 05:00 AM CDT 31 August 2015
Wednesday Wind northwest 20 knots diminishing to light in the afternoon.
Thursday Wind light increasing to southeast 25 knots late in the day.
Friday Wind southeast 25 knots diminishing to southwest 15 late in the day.

Ice Forecast

Issued 11:00 AM EDT 30 August 2015 Today Tonight and Monday Ice free. 

[ Canadian Ice Service ]

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Weather Conditions

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Ice Conditions

Ice Forecasts

Issued 11:00 AM EDT 30 August 2015 Today Tonight and Monday

Ice Edge

First ice edge estimated from Ontario near 5515N 8500W to 5640N
8420W to 5630N 8200W to Ontario near 5510N 8220W. Sea ice south of
the ice edge.

Second ice edge estimated from Nunavut near 6520N 8715W to
Southampton Island near 6520N 8605W. Sea ice north of the ice edge.

Third ice edge estimated from Southampton Island near 6310N 8500W to
6300N 8500W to 6300N 8200W to 6250N 8100W to 6300N 7900W to Foxe
Peninsula near 6420N 7740W. Sea ice north of the ice edge.

Ice Coverage

Ice free.


Warnings (In effect)

Gale warning in effect

James Bay - northern half

Issued 05:00 AM CDT 31 August 2015

'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.


Technical Marine Synopsis

Issued 4:45 AM EDT 31 August 2015 Today Tonight and Tuesday At 1200 UTC Monday low 999 mb located at 54N 96W.
By 0000 UTC Wednesday low 995 mb located at 57N 76W.

At 1200 UTC Monday ridge from 1020 mb high located over 64N 83W
extending southward.
By 0000 UTC Wednesday ridge from 1018 mb high located over 67N
64W extending southward.

At 1200 UTC Monday low 1007 mb located at 64N 60W.
By 0000 UTC Wednesday low 1006 mb located at 60N 50W.

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