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Observation: Miller Bowl

Observation Date
11/18/2013
Observer Name
Weston Curtis
Region
Logan » Logan River » Tony Grove » Miller Bowl
Location Name or Route
Miller Bowl, Tony Grove area
Weather
Sky
Clear
Snow Characteristics
New Snow Depth
20"
New Snow Density
Medium
Snow Surface Conditions
Powder
Wind Crust
Snow Characteristics Comments
Faceted old snow on the ground, with around 20" of new snow from Friday and Saturday on top of it. There was a lot of work done by the wind. Wind deposits were significant and wind slabs have developed.
Red Flags
Red Flags
Heavy Snowfall
Wind Loading
Cracking
Collapsing
Red Flags Comments
As I was breaking trail on a steep section at the top of Miller Bowl the snow around me "wumfed" and a crack shot to the rocks 5 feet to my left. An extended column test on the open slope prior to this revealed Collapses about 3-4 inches off of the ground on the 6th pat with my shoulder with no propagation.
Avalanche Problem #1
Problem
Persistent Weak Layer
Problem #1 Comments
The new snow did not seem to bond well in some areas with the old faceted Halloween snow.
Snow Profile
Aspect
North
Elevation
8,700'
Slope Angle
36°
Coordinates