Avalanche

Robinson Basin area

Zach GuyGunnison
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Observation photo 1Observation photo 2

Quick report

Conditions were almost white-out, which made it difficult to see signs of instability, if there were any below my sled.

Weather

Cloud Cover
overcast
Wind Loading
moderate
Rain Elevation
N/A
Recent Snowfall
15 to 20
Snow Avail For Transport
moderate amounts

Light to moderate snowfall rates throughout the day. On Scarp Ridge at 12,000', there was generally moderate transport from SW winds with brief strong gusts and intense wind transport . Lighter snow transport near treeline.

Snowpack

Dug two pits around 11,000' on slopes with modest amounts of previous windloading, on east and northeast aspects.  The most recent slabs are about 75 cm thick, averaging 4F hard.  I got hard, non-propagating ECT results in both pits on small grained facets near the 3/23 interface.  The test result and facets looked a little more problematic above the crust on the east facing pit, though neither produced particularly alarming results.  

Avalanche

Size
D2
Type
SS
Aspect
NE
Trigger
N
Elevation
12200 ft

One large D2+ debris pile below the northeast side of Owen that ran today. Couldn't see the start zone in the whiteout, but certainly a slab avalanche.