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Hazard Advisory - Valley West of Husky Lake, Gwich'in Settlement Area

Updated 4 August, 2015

Permafrost thaw is expected to cause catastrophic lake drainage and potential debris flow in 2015.

A rapid flow of water and debris is expected in a small creek valley west of Husky Lake, which lies in the Gwich' in Settlement Area (GSA).  The growth of a permafrost thaw slump will likely cause a small lake to drain catastrophically during 2015, resulting in a flash flood and possibly a debris flow. A flash flood could happen at any time during the summer or fall of 2015.

Looking northwest at a permafrost thaw slump and small lake that is expected to drain catastrophically causing flash flooding near Husky Lake, Gwich'in Settlement Area.
Looking northwest at a permafrost thaw slump and small lake that is expected to drain catastrophically causing flash flooding near Husky Lake, Gwich'in Settlement Area. Photo Credit: Scott Zolkos, University of Alberta.

Hazard Region

The area of potential impact is outlined in red on the map and three hazardous areas include:

Hazard Area 1: Traveler's Cabin at north end of Husky Lake
67°32'54.16"N, 135°11'40.72"W

Hazard Area 2: Lake north of Husky Lake
67°34'27.71"N; 135°13'6.57"W

Hazard Area 3: Permafrost thaw slump next to small lake
67°31'10.23"N; 135°18'26.53"W

Map of Geohazard_Peel Plateau_ Summer 2015
The area outlined in red could be impacted by flash flooding and debris flows following the drainage of a small lake due to permafrost thaw, Husky Lake, Peel Plateau, GSA.

Caution!

Be aware of the potential risk of a flash flood. Avoid camping or traveling in this area.  There is no warning system in place. The lake and slump will be monitored as part of a NTGS permafrost research project.

Looking northeast at a permafrost thaw slump and small lake that is expected to drain catastrophically causing flash flooding near Husky Lake, Gwich'in Settlement Area.
Looking northeast at a permafrost thaw slump and small lake that is expected to drain catastrophically causing flash flooding near Husky Lake, Gwich'in Settlement Area. Photo Credit: Scott Zolkos, University of Alberta.

Looking south at a permafrost thaw slump and small lake that is expected to drain catastrophically causing flash flooding near Husky Lake, Gwich'in Settlement Area.
Looking south at a permafrost thaw slump and small lake that is expected to drain catastrophically causing flash flooding near Husky Lake, Gwich'in Settlement Area. Photo Credit: Scott Zolkos, University of Alberta.

Information

For more information contact:

Drew Williams
Manager, Public Affairs and Communication
Policy, Legislation and Communications
Industry, Tourism and Investment
867.920.8696
Drew_Williams@gov.nt.ca