Date of Observation: 12/09/2022
Name: Zach Guy and Zach Kinler
Zone: Northwest Mountains
Route Description: Anthracites and East Beckwith.
Observed avalanche activity: Yes
Avalanches: Numerous large persistent slabs that ran sometime in the past few days on NW to E aspects ATL, in addition to the slides Eric documented yesterday.
Location: Anthracite Range
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: NE
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane: Old snow
Relative Size:
Destructive Size: D2 – could bury, injure, or kill a person
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Budda Bowl and Moose Tooth bowl. Crown/debris are semi filled in.
Location: Anthracite Range
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: N
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Relative Size: R2 small
Destructive Size: D2.5
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Budda Bowl. Bedsurface looked fresh.
Location: Beckwith Range
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: E
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane: Old snow
Relative Size: R1 very small
Destructive Size: D2 – could bury, injure, or kill a person
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments: East Beckwith. Bedsurfaces and crowns looked fresh
Location: Beckwith Range
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: E
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane: Old snow
Relative Size: R2 small
Destructive Size: D2 – could bury, injure, or kill a person
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments: East Beckwith. Crown looked older
Location: Beckwith Range
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: NW
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane: Old snow
Relative Size: R1 very small
Destructive Size: D2 – could bury, injure, or kill a person
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments: East Beckwith. Crowns and bedsurface looked fairly fresh.
