Avalanche

Mountain Washington

Tyler PatnoPresidential Range
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Observation photo 1Observation photo 2Observation photo 3

Quick report

Cracking
specific

The newer/harder/supportive wind slabs showing little reactivity on the surface, but failed on a 1cm thick layer of rods beneath new wind slab/atop new snow during isolation for an ECT in gully 2 at ~4800’. Areas of softer snow bonding better. Good bonding found between new snow (1/6)to old wind slab and/or MFC in GOS, Huntington, tucks, great gulf - all aspects for each. Moderate bonding found between new snow and MFC, all aspects same zones. Poor bonding between new snow (1/7) to MFC- all aspects, new wind slabs and new snow-all eastern aspects with higher reactivity found specifically in eastern and southeastern aspects. Similar slabs found in numerous eastern/southeastern aspects along the entirety of eastern Washington.

Avalanche

Size
D1
Type
SS
Aspect
E
Trigger
AS
Elevation
4600 ft

4 primary layers of snow pack to look at rn: MFC, new snow (1/6) w/ specific wind slabs associated, new snow (1/7), new wind slabs (1/8). New wind slab failed on old wind slab