Avalanche

Mt. Bellview

Zach GuyGunnison
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Observation photo 1Observation photo 2Observation photo 3

Quick report

Cracking
specific
Collapsing
specific

We kept to mellower terrain on the north side of Bellview, where we experienced frequent collapses, shooting cracks, and unstable pit results 1 to 2 feet deep over our dryspell facet layer.  We found stable snow on sunnier aspects where the snow fell on dirt.  

On mellow, north-facing terrain above treeline, we experienced five collapses and shooting cracks, typically in terrain with some amount of cross-loading. Collapses/cracks radiated about 30 to 40 feet; one rolled onto a steeper slope but didn't release. Slabs were 1 to 2 feet thick over the storm interface (11/16 facet layer).

Weather

Cloud Cover
scattered
Wind Loading
previous
Rain Elevation
Below valley floor
Recent Snowfall
30
Snow Avail For Transport
moderate amounts

Snowpack

New snow depths were 10" to 12" at 11,000'.  Above treeline, the new snow was redistributed by yesterday's west to northwest winds into drifts ranging from 1 to 3 feet thick.  On north aspects of Bellview, the new and drifted snow often sits on facets. The facets are occasionally above or below old melt-freeze crusts.  There was a surface hoar event last night: I noticed 2-3 mm surface hoar up to at least 11,400' and didn't find it above treeline.  

Avalanche

Size
D1
Type
SS
Count
2
Aspect
NE
Trigger
N
Elevation
13200 ft

A couple of small wind slabs ran naturally from shady alpine terrain during the storm.