Old Bed Surfaces

CB Avalanche Center2017-18 Observations

Location: Paradise Divide Area
Date of Observation: 01/20/2018
Name: Evan Ross

Subject: Old Bed Surfaces
Aspect: North East
Elevation: 9,000 to 11,000

Snowpack: The wide propagating avalanches from our last avalanche cycle sure are cool to lay eyes on. The crush and flush analogy didn’t appear to work on the avalanche paths I viewed on Schuylkill Ridge. HS is shallow below these old crowns. With a couple inches of NSF on top of the old bed surface and still 10 to 30cm’s of large grained depth hoar below. These slopes lost their mid-pack, butt didn’t loose their persistent weak layers.