James Bay - northern half


Marine Forecast

Issued 05:00 PM CDT 21 June 2018

Tonight and Friday.

Wind south 20 knots becoming north 20 late overnight then diminishing to light late Friday morning.

Chance of showers tonight with a risk of thunderstorms. Mist dissipating Friday morning. Visibility as low as 1 mile in mist.

Temperatures plus 4 falling to zero Friday morning.


Issued 05:00 PM CDT 21 June 2018
Tonight and Friday. Over open water seas 1 metre or less.

Extended Forecast

Issued 05:00 PM CDT 21 June 2018
Saturday Wind light.
Sunday Wind light.
Monday Wind light increasing to south 30 knots late in the day.

Ice Forecast

Issued 11:00 AM EDT 21 June 2018 Today Tonight and Friday 6 tenths first-year ice. 

[ Canadian Ice Service ]

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Ice Conditions

Ice Forecasts

Issued 11:00 AM EDT 21 June 2018 Today Tonight and Friday

Ice Edge

Ice edge is outside the forecast region.

Ice Coverage

6 tenths first-year ice.


No watches or warnings in effect.


Technical Marine Synopsis

Issued 4:45 PM EDT 21 June 2018 Tonight and Friday At 0000 UTC Friday weakening cold front from 993 mb low located
from Foxe Basin to James Bay.
By 0000 UTC Saturday dissipating cold front from 996 mb low located
from Ungava Bay to Labrador.

At 0000 UTC Friday quasi-stationary ridge located over southwestern
Hudson Bay.

At 0000 UTC Friday dissipating low 991 mb located over northern
Labrador Sea.

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