Anthracite Storm Slabs

CB Avalanche Center2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 01/03/2017
Subject: Anthracite Storm Slabs
Aspect: North, North East, South
Elevation: 11200-10000

Avalanches: Intentionally triggered multiple small storm slabs. Small r1d1 in rock, from left side convexity. r2d? in Big Chute. Triggered from wind loaded pockets near top on skiers left. Debris did not break small trees but piled deep enough to bury a person in terrain trap on bottom right of big. Released small sympathetic slab on steep roll above terrain trap. Also intentional remote trigger by jumping on convexities: r1d2 on skiers right of south facing bowl across from 7th. Broke 100ft wide, ran to flats. Numerous crowns in East Bowl and Playground area. More prevalent where wind loading had occurred. Slab activity was limited to steeper terrain. 7th skied with no signs of instability.
Weather: s1/s2 off and on. Occasional gusts with some wind transport up high.
Snowpack: ~18-24″ storm snow depending on loading