Avalanche Occurrence
General Information
Observer:
Professional
Verified by SAC?
Yes
Occurrence Date:
Dec 7, 2020 8:20 am (Exact)
Location:
Upper Greyhawk - CLOSED ski run
Comments:
Ski patrol intentionally triggered this avalanche in a closed area before the ski area had opened for the day.
Avalanche Characteristics
# of Avys:
1Aspect:
NStart Zone Elev:
7500ftSize:
D2 / R2Type:
HS-Hard SlabTrigger:
AS-Skierc-Intentional
Bed Surface:
O-Old SnowDepth:
1ftWidth:
130ftStart Zone Slope:
35°Vertical Fall:
700ftComments:
This slide involved a thick, dense slab of manmade snow and is not representative of backcountry or natural snowpack conditions.