Natural slabs ATL

CB Avalanche Center 2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 02/27/2017
Name: Irwin Guides
Subject: Natural slabs ATL
Aspect: South East, South, South West

Avalanches: D2 South Owen, D1.5 West Col between Ruby and Owen, D2 NE Owen, D2 E Scarps

D2 Bender: SS-R1-D2-AB-I 38* Wind loaded crown 30cm -70cm deep, flank ~20cms. HST sitting on MFcr (K) very thick. Under the cliffs, stepped down again to crust , cleaning out AM Snow Safety tracks.
Weather: CLR, 0 degrees at Ridgetop 1200. Clouds building in the pm. Increasing winds transporting snow throughout the day. COLD!
Snowpack: The Crust/Facet/Crust combo is much closer on Southerly slopes, crusts separated by 1-2 cms. Further West the separation between crust layers increases to +15cms. Crusts on Western terrain are buried up to 40cms deep. Two collapses in the flats below Swill/Bender. No Cracking East or West. Barker marker basin pit on collapse site: SC 44cm down of FC (very thin layer of F-hard 1mm) just above lower MFcr. Layer above is 4F FC then the top MFcr. The storm snow slab is ~35cm deep of 4f to F on surface.

Natural D2 on South Face Owen


Explosive triggered D2 Bender: SS-R1-D2-AB-I 38*