Avalanche

Point 6, Jenny Bowl

Cam MackenzieRattlesnake
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Observation photo 1Observation photo 2Observation photo 3

Quick report

Cracking
widespread

Intentionally triggered to D1 wind slabs along ridgeline with small corncie kicks. Sensitive slabs on east aspects. Stubborn older wind slabs on N aspects with cracking but no avalanches.

Weather

Air Temp
20
Cloud Cover
obscured
Wind Loading
moderate
Rain Elevation
4300
Recent Snowfall
10
Snow Avail For Transport
moderate amounts

Overscast with obscured vis all day. S-1 snowfall rates with another 2-3 inches falling during the field day. Active transport of new snow along ridgelines.

Snowpack

Dug two full depth snowpits on opposite aspects and terrain. 

South aspect pit in sheltered terrain had an overall stronger structure with rounding facets and although there were some facets above the buried melt-freeze crust, these were unreactive in tests and rounding. In this area, there was 4 inches of new snow at the surface unnafected by the wind and without a storm slab. 

On the northeast aspect ridgline pit, the facets around the melt-freeze crust were more developed and reactive in snowpit tests. This area had 6-8 inches of wind slab at the surface that was cracking around skis while approaching the pit area. 

Avalanche

Size
D1 R2
Type
SS
Aspect
E
Trigger
AC
Elevation
7600 ft

Intentionally released with small cornice