Avalanche: Humpy Peak

Observer Name
Casey/ Craig Gordon/ Ted Scroggin
Observation Date
Wednesday, March 7, 2018
Avalanche Date
Wednesday, March 7, 2018
Region
Humpy Peak
Location Name or Route
Humpy Creek
Elevation
10300
Aspect
Northeast
Slope Angle
36
Trigger
Snowmobiler
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Hard Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
4'
Width
70
Vertical
250
Comments

Ted and I visited the site today and found a relatively shallow snowpack for early March.  Witness reported it was the 4th time up the slope. Sledder triggered slide mid-slope where the terrain gets slightly steeper. Snowmobiler was able to outrun the avalanche.  

 

Comments

Craig crawling around on the bed surface.

Looking up at the crown which was 3'-4' deep and approx 75 wide, running 250' vertically.

Overview from the bottom up. Curious that adjacent slopes with similar terrain characteristics didn't avalanche. 

Coordinates

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