Irwin Tenure

CB Avalanche Center 2015-16 Observations, Snow Profiles

Location: Kebler Pass Area
Date of Observation: 12/27/2015
Name: Irwin Guides
Subject: Irwin Tenure
Aspect: West
Elevation: 10,000-12,000

Avalanches:
Weather: Warm day today with solar, high of 34F.
Snowpack: 2-Chutes: One small collapse in the upper pitch, Good cracking on upper 5lb hand shot (50 cm to ground). 9lb Airblasts in Middle of 2-chutes and in Widow
maker with no results. JB Jungle/Mean: 9£ cover shot in JB trees produced SS-AE-R1-D1-G. Slide
strained through trees and petered out on JB apron. 9£ hand shot in JB/Mean
interface left surface cracking, but skiing next to crater produced a medium collapse
post detonation. 9£ Airblast in JB apron below trees no results.

A slope in between double handshots in Mean, produced 20 ft shooting cracks
(depth unknown), no collapsing noted. 9£ Airblast in Mean produced no results.
Outer Limits: No signs of instability with ski cuts and big airblasts. Profile below
rock band: HS 150 w/ 40 cm’s of 2mm Facets. ECTX. CTM24 SC @ 40cm 2mm
Facets. Three 5lb. Hand shots simo in Round Two below OL w/ no results.