CB Avalanche CenterCBAC Observations
Date of Observation: 12/11/2021
Name: Zach Guy
Zone: Northwest Mountains
Route Description: Anthracite Range and East Beckwith
Observed avalanche activity: Yes
Avalanches: A handful of D1 to D2 slabs, various aspects. See photos
Location: Anthracite Range
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: SE
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane:
Relative Size: R1 very small
Destructive Size: D1.5
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Anthracite Range
Location: Anthracite Range
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: NW
Trigger:
Trigger modifier:
Type:
Failure Plane:
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: 7th bowl
Location: Anthracite Range
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: E
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane:
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 Bowl anthracites
Location: Anthracite Range
Location Specific:
Start Zone Elevation: BTL: Below Tree Line
Aspect: N
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane:
Relative Size: R1 very small
Destructive Size: D1.5
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments:
Location:
Location Specific:
Start Zone Elevation:
Aspect:
Trigger:
Trigger modifier:
Type:
Failure Plane:
Relative Size:
Destructive Size:
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
# of people caught:
# of partial burials:
# of full burials:
Additional comments:
