Date of Observation: 01/12/2022
Name: Zach Guy and Evan Ross
Zone: Northwest Mountains
Route Description: East and West Beckwith and Anthracite Creek as viewed from the Blob.
Observed avalanche activity: Yes
Avalanches: Recording a handful of previously undocumented avalanches that likely ran around 12/30 to 12/31. Viewed from afar, and some crowns have been partially drifted in, so sizes are best estimates.
Photos:
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NW Bowl of Richmond
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Above Dark Canyon
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East Beckwith
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East Beckwith
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West Beckwith
Estimated avalanche date: 12/31/2021
Number of Avalanches: 2
Location
Location: Beckwith Range
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: N
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R3 medium
Destructive Size: D3 – could destroy a car, wood-frame house, or snap trees
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: East Beckwith x 2
Estimated avalanche date: 12/31/2021
Number of Avalanches: 1
Location
Location: Beckwith Range
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: N
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R4 large
Destructive Size: D3.5
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: West Beckwith
Estimated avalanche date: 12/31/2021
Number of Avalanches: 1
Location
Location: Anthracite Creek (West side of Ruby Range, Marcellina)
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: N
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R3 medium
Destructive Size: D3 – could destroy a car, wood-frame house, or snap trees
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: “Super Schuykill” above Dark Canyon
Estimated avalanche date: 12/30/2021
Number of Avalanches: 1
Location
Location: Anthracite Creek (West side of Ruby Range, Marcellina)
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: N
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R3 medium
Destructive Size: D3 – could destroy a car, wood-frame house, or snap trees
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Richmond NW bowl. Potentially larger than coded, but crown is mostly filled in, so hard to say…
Estimated avalanche date: 12/31/2021
Number of Avalanches: 1
Location
Location: Anthracite Creek (West side of Ruby Range, Marcellina)
Location Specific:
Start Zone Elevation: BTL: Below Tree Line
Aspect: N
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R3 medium
Destructive Size: D2 – could bury, injure, or kill a person
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Above Buck Creek
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