Marine Forecast
Issued 07:00 PM MDT 19 August 2026
Tonight and Thursday.
Wind light increasing to east 20 knots near noon
Thursday.
Scattered showers this evening. Fog patches forming late
overnight and dissipating Thursday morning. Fog patches reforming Thursday
evening.
Low tonight zero. High Thursday plus 9.
Winds
Issued 07:00 PM MDT 19 August 2026
Tonight and Thursday.
Wind light increasing to east 20 knots near noon
Thursday.
Waves
Issued 07:00 PM MDT 19 August 2026
Tonight and Thursday.
Over open water seas 1 metre or less building to 1 to 2 early
Thursday evening.
Weather & Visibility
Issued 07:00 PM MDT 19 August 2026
Tonight and Thursday.
Scattered showers this evening. Fog patches forming late
overnight and dissipating Thursday morning. Fog patches reforming Thursday
evening.
Air temperature
Issued 07:00 PM MDT 19 August 2026
Tonight and Thursday.
Low tonight zero. High Thursday plus 9.
Ice Forecasts
Issued 10:00 AM EDT 19 August 2026 Today Tonight and Thursday Ice Edge
First ice edge estimated from Brodeur Peninsula near 7154N 9004W to
7115N 9200W to Nunavut near 7037N 9210W. Sea ice southeast of the
ice edge.
Second ice edge estimated from Nunavut near 6948N 12206W to 7040N
11958W to Victoria Island near 7136N 11854W. Sea ice west of the ice
edge.
Third ice edge estimated from Victoria Island near 6901N 10147W to
6930N 10000W to 7030N 9900W to Prince of Wales Island near 7214N
10128W. Sea ice west of the ice edge.
Fourth ice edge estimated from Prince of Wales Island near 7244N
9630W to Somerset Island near 7320N 9538W. Sea ice northwest of the
ice edge.
Ice Coverage
Special ice warning in effect.
1 tenth first-year ice including a trace of old ice except 5 tenths
old ice in the northwestern section.
Unusual presence of first-year ice in the southeastern section today
and continuing Thursday.
Warnings (In effect)
Mackenzie
Issued 10:00 AM EDT 19 August 2026Navigators 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 19 August 2026 Tonight and Thursday At 0000 UTC Thursday dissipating low 992 mb located at 85N 164W.
At 0000 UTC Thursday building ridge located off Arctic Coast
of Alaska.
By 0000 UTC Friday high 1020 mb located over Banks Island.