Marine Forecast
Issued 05:30 AM EDT 15 September 2025
Today Tonight and Tuesday.
Gale warning in effect.
Wind northeast 40 knots diminishing to north 25 Tuesday
evening.
Freezing spray warning in effect.
Over open water freezing spray ending this
morning.
Temperatures near minus 1.
Winds
Issued 05:30 AM EDT 15 September 2025
Today Tonight and Tuesday.
Gale warning in effect.
Wind northeast 40 knots diminishing to north 25 Tuesday
evening.
Waves
Issued 05:30 AM EDT 15 September 2025
Today Tonight and Tuesday.
Over open water seas 3 metres.
Air temperature
Issued 05:30 AM EDT 15 September 2025
Today Tonight and Tuesday.
Temperatures near minus 1.
Freezing Spray
Issued 05:30 AM EDT 15 September 2025
Today Tonight and Tuesday.
Freezing spray warning in effect.
Over open water freezing spray ending this
morning.
Ice Forecasts
Issued 11:00 AM EDT 14 September 2025 Today Tonight and Monday Ice Edge
First ice edge estimated from Borden Peninsula near 7325N 8109W to
Bylot Island near 7326N 8052W. Sea ice north of the ice edge.
Second ice edge estimated from Bylot Island near 7252N 7603W to
7329N 7013W to 7450N 7430W to 7529N 7338W then northeastward. Sea
ice west of the ice edge.
Ice Coverage
Ice pressure warning in effect.
1 tenth old ice except 7 tenths old ice in the western section.
Strong ice pressure along the coast of Ellesmere Island developing
this evening and continuing Monday.
Warnings (In effect)
Clarence - northern half
Issued 05:30 AM EDT 15 September 2025'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.
Clarence - northern half
Issued 05:30 AM EDT 15 September 2025Moderate or severe freezing spray is occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.
Clarence - northern half
Issued 11:00 AM EDT 14 September 2025Navigators in this marine area should be on the lookout for hazardous ice conditions and take necessary safety precautions. Please refer to the latest ice forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio stations.
Technical Marine Synopsis
Issued 6:30 PM MDT 14 September 2025 Tonight and Monday At 0000 UTC Monday departing low 1006 mb located at 68N 76W.
At 0000 UTC Monday ridge located from 71N 120W to 83N 108W.
By 0000 UTC Tuesday ridge located from 68N 100W to 76N 107W then
to 82N 75W.
By 0000 UTC Tuesday approaching low 1015 mb located at 75N 70W.