Irwin Cat Terrain obs

CB Avalanche Center 2016-17 Observations

Location: Kebler Pass Area
Date of Observation: 12/27/2016
Name: Irwin Guides
Subject: Irwin Cat Terrain obs
Elevation: 10,000 -12,000 ft.

Avalanches: Explosive triggered D1.5’s out of Lone Wolf & Ski Heroes 20-50cm crowns. A few small D1s in Field of Screams. UUWW slides explosive triggered with 9# airblasts.
Natural D2 on South Ruby face
Weather: Partly Cloudy with winds picking up throughout the day SW 30’s/G-50’s. Intense wind transport. High Temps: 31F@10K and 19F@12K.
Snowpack: Persistent Slab Un-reactive in UUWW. Top 20-50cms reactive to Air Blasts in UUWW, pryed out borderline hard slab, wind drifted lenses. UUWW very variable with 10-20cm’s of facets to 130cm 1-Finger hard slab on the same slope. Slab formations mostly discontinuous with a lot of wind pasted whales in between runs by tree fences.