Valanga

Acid Ridge

Andonis PavlantosTetons
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Foto dell’osservazione 1Foto dell’osservazione 2

Quick report

Collapsing
isolated

New snow not bonding to old faceted surface snow on W-N-E aspects. New snow sits on Facets that are developed all the way to a rain crust below them. Southerly snow took the green housing and strong sun early Thursday putting a crust mid Thursday afternoon on the surface. By Friday morning new snow was bonded to old firm snow surface. New snow old surface hand sheer results were alarming so I dug on a loaded test slope on a North aspect at 9268’. ECT4 failing 35cm down on near surface facets.

Weather

Cloud Cover
overcast
Wind Loading
light
Recent Snowfall
Trace (Thursday am-Friday am)

Foggy misty weather observed Thursday afternoon through Friday afternoon.

Snowpack

New storm snow took a crusty top cap with a misty night (Thursday night). All aspects surface snow has 5mm to 1cm thick crust. Storm snow is up to 35cm deep on favored areas and reactive with propagation with slope cuts and snow pit tests. Our group kept a low exposure/constrained mind set keeping our terrain manageable for our risk tolerances and abilities.

Avalanche

Size
D1 R1
Type
SS
Count
2
Aspect
N
Trigger
AS
Elevation
8800 ft

Skier took hard turn off cliff and triggered an isolated pocket on the steep rollover.