Date of Observation: 03/10/2023
Name: Zach Guy
Zone: Southeast Mountains
Route Description: Mount Emmons, various aspects near and below treeline.
Observed avalanche activity: Yes
Avalanches: Skier triggered a handful of small loose snow avalanches involving the new snow; the longest ran about 1000’ vert.
Weather: S1 to S2 throughout the day. Calm winds where we traveled.
Snowpack: The new snow was not bonding well to old surfaces (sun crusts, wind board, NSF). Storm totals ranged from about 8” or 9” NTL to 6” at valley floor by 4 pm. The snow was cohesionless and sluffing, no cracking or slabbing yet.
Estimated avalanche date: 03/10/2023
Number of Avalanches: 2
Location
Location: Mount Emmons
Location Specific:
Start Zone Elevation: NTL: Near Tree Line
Aspect: NE
Characteristics
Trigger: Skier
Trigger modifier: Controlled
Type: Loose
Failure Plane: New/Old interface
Size
Relative Size: R1 very small
Destructive Size: D1.5
Avg. crown height (inches): 8
Avg. width (feet):
Avg. vertical run (feet): 1000
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Climax chutes. Ran to mid track.
Estimated avalanche date: 03/10/2023
Number of Avalanches: 4
Location
Location: Mount Emmons
Location Specific:
Start Zone Elevation: BTL: Below Tree Line
Aspect: NE
Characteristics
Trigger: Skier
Trigger modifier: Controlled
Type: Loose
Failure Plane: New/Old interface
Size
Relative Size: R1 very small
Destructive Size: D1- Relatively harmless to people
Avg. crown height (inches): 6
Avg. width (feet):
Avg. vertical run (feet): 100
Involvements
# of people caught:
# of partial burials:
# of full burials:
Additional comments: Climax chutes
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