snow pit obs

CB Avalanche Center2016-17 Observations

Location: Crested Butte Area
Date of Observation: 01/09/2017
Name: jeff banks
Subject: snow pit obs
Aspect: South West
Elevation: 9000

Weather: 16:45
Storm force winds from NW, intense drifting
Snowpack: HS 145cm
23* slope
ECTP 16 SC on storm slab instability of F hard PP 45cm down
ECTP 7 SC repeatable, with the 1F slab above

after investigating block & removing it, continued with informal test and found a 2nd failure @ 85cm down on 25th tap. Slab of 1F RG 0.5mm that propagated (SP) on thin layer of F hard FC 2mm lying on a 1F hard MFcr.

bottom 1/3rd of pack consisted of well bonded facets that have rounded and at the ground are very moist & stuck to the grass. So we got that going for us, which is nice.

no other signs of instability on a short low angled tour, spooky stable underfoot.