Observer Name
Casey/ Craig Gordon/ Ted Scroggin
Observation Date
Wednesday, March 7, 2018
Avalanche Date
Wednesday, March 7, 2018
Region
Uintas » Bear River Ranger District » Humpy Creek » Humpy Peak
Location Name or Route
Humpy Creek
Elevation
10,300'
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