Date of Observation: 04/01/2023
Name: Zach Guy
Zone: Northwest Mountains
Route Description: Viewed from Mt. CB
Observed avalanche activity: Yes
Avalanches: A large persistent slab (D2.5) on a shallow, east-facing slope on East Beckwith looks like it ran yesterday. Several wind slabs D1-D2, mostly yesterday, one today. A large cornice fall today (D2). Numerous small wet loose today (D1s).
Weather: Clear skies, mild temps, occasional light drifting near wind exposed summits.
Photos:
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A large persistent slab on East Beckwith (slab is on the right side of the photo)
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A wind slab and wet loose activity in the Anthracites.
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Cornice fall on Scarp Ridge and small wind slab (top right) that ran today.
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Example of small loose wet activity that was common on steep, rocky, sunny terrain.
Estimated avalanche date: 03/31/2023
Number of Avalanches: 1
Location
Location: Beckwith Range
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Hard Slab
Failure Plane: Old snow
Size
Relative Size: R3 medium
Destructive Size: D2.5
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. Viewed from a distance, failure date and size estimated.
Estimated avalanche date: 04/01/2023
Number of Avalanches: 1
Location
Location: Peeler Basin
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: NE
Characteristics
Trigger: Natural
Trigger modifier:
Type: Cornice
Failure Plane:
Size
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):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Scarp Ridge
Estimated avalanche date: 04/01/2023
Number of Avalanches: 1
Location
Location: Peeler Basin
Location Specific:
Start Zone Elevation: ATL: Above Tree Line
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Soft Slab
Failure Plane: Within storm snow
Size
Relative Size: R1 very small
Destructive Size: D1- Relatively harmless to people
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments:
Estimated avalanche date: 04/01/2023
Number of Avalanches: 8
Location
Location: Oh-Be-Joyful Basin
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: SE
Characteristics
Trigger:
Trigger modifier:
Type: Wet Loose
Failure Plane: Within storm snow
Size
Relative Size: R1 very small
Destructive Size: D1- Relatively harmless to people
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Various locations N/ATL
Estimated avalanche date: 04/01/2023
Number of Avalanches: 5
Location
Location: Mount Axtell
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: E
Characteristics
Trigger: Natural
Trigger modifier:
Type: Wet Loose
Failure Plane:
Size
Relative Size: R1 very small
Destructive Size: D1- Relatively harmless to people
Avg. crown height (inches):
Avg. width (feet):
Avg. vertical run (feet):
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments:
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