Avalanche

Cooney Creek

Rob Millspaugh
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Observation photo 1Observation photo 2Observation photo 3Observation photo 4

Quick report

Collapsing
specific

 Went to get a closer look at the local glide crack hoping to catch some actions.  Was not disappointed. 

  • Found several more glide cracks on slopes facing SE, S and SW above 6500'.
  • Witnessed one glide avalanche.
  • Lots of natural avalanche activity on slopes facing S, SW and W from 3 pm to 5 pm.
  • Most activity was loose wet, a small percentage were slabs.
  • Several collapses on southerly slopes above 7000' probably on one of several layers of wet facets. 
  • At 7500'  snowpack was dry on E, N, NW but glazed with thin crust. S was wet from top to bottom.
  • Travel through low elevations was heinous. Semi supportable crust on the ascent and a hot mess on the descent. 

I stuck to low angle slopes and skied defensively.

Media to follow.

Collapses on SW-S @ 7000-7500'

Weather

Air Temp
41 @ 7500'
Cloud Cover
clear
Wind Loading
none
Snow Avail For Transport
none

Light west wind.

Snowpack

@ 7500 N

  • Hs = 230cm
  • ECTN 13 down 30 cm 
  • Thin crust at the surface with dry snow below
  • No obvious weak layers in the top 100cm

@7500 S, whumpf

  • HS = 90 cm
  • Wet from top to bottom
  • Layers of wet facets down 20cm, 40cm and at the ground

 

Avalanche

Size
D2 R1
Type
SS
Count
5
Aspect
SE
Trigger
N
Elevation
7000 ft

Most avalanche activity from 1500-1700 hrs. Watched glide crack release (D2). Countless wet loose (D1-2). Looked like a few wet slabs (D1-2). Also noted a few older crowns likely from 2/23 (D2-3). Avalanche events to follow.