Natural Activity in the Sherwins

AVALANCHE OBSERVATION
Sherwin Ridge

Drainage:

Submission Info
Ryan Huetter
Volunteer Observer
Monday, January 7, 2019 - 12:00am
Red Flags: 
Recent avalanche activity
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain
Terrain Trap
Avalanche Type: 
Slab
Slope: 
38degrees
Trigger type: 
Natural
Crown Height: 
2 ft
Aspect: 
Northeast
Weak Layer: 
Old Snow
Avalanche Width: 
40ft.
Terrain: 
Below Treeline
Elevation: 
8 850ft.
Bed Surface: 
Old Snow
Avalanche Length: 
100ft.
Number of similar avalanches: 
1
Number of partial burials: 
0
Number of full burials: 
0
More detailed information about the avalanche: 

Natural, D-2 slab avalanche observed in steep treed terrain, in a cross loaded gully feature below Mammoth Rock Bowl. Crown depth 40-60cm.

CT20 SC results adjacent to crown failing on faceted crystals. Ran mid storm and debris was somewhat obscured by continuing winds. 

A second, D1 slab avalanche was observed below the Mine Shaft on a similar aspect and elevation, though with a much shallower snow depth and failing closer to the ground. 

Avalanche Photos: 
Number of People Caught: 
0
37° 36' 55.5156" N, 118° 59' 32.658" W
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