Avalanche

Bishop Creek - Wet Facets And Poor Coverage Below Treeline

Clancy NelsonEastside Region
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Observation photo 1Observation photo 2Observation photo 3Observation photo 4

Weather

Air Temp
70
Cloud Cover
clear
Wind Loading
none
Rain Elevation
NA
Recent Snowfall
0
Snow Avail For Transport
none

It's too hot. Hot damn. Make a dragon want to retire man. Too hot. Light south winds.

Snowpack

The only snow below 9500 feet is on slopes facing due north, or in gullies. Most slopes are bare at lower elevations, and the snow that exists is a homogeneous melt-freeze snowpack. I hiked in running shoes below 9500 ft. on both ends of my day.

I looked into the snowpack between 9500 and 11,000 feet 3 times:

  • North, 9500 ft., 9:15 am: supportable melt-freeze crust over wet melt forms. Snow depth: 65 cm.
  • East, 10,500 ft. 10:15 am: mostly supportable crust over wet melt-froms. Snow depth 30 cm.
  • North-northeast, 11,000 ft. 10:30 am: wet surface, 1 finger hard slab, then wet facets buried 2/10. Propagating snowpack test results in the 2/10 facets.

I turned around at 11 am, and almost all of the slopes that had supportable snow a few hours ago were not so supportable. I sank into my boot top or my knee on my skis several times. 

Avalanche

Size
D1
Type
WL
Aspect
NE
Trigger
N
Elevation
11000 ft

D1 natural wet loose avalanche that occurred between 8:30 am and noon today. 11,000 ft. Northeast aspect, above treeline. Wheeler Crest