Avalanche

Marias Pass

Adam Clark
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Observation photo 1

Quick report

-Sheltered terrain above 6000' had 6-12" of soft snow from the latest storm resting on top of a firm and supportable crust. In the alpine this crust was so firm it forced me onto the front points of my crampons in steeper areas. -Wind slabs above 6000' were 2-4+' thick. I was unable to pop out any slabs or get any cracking on test slopes. -Sunny aspects were cooked today and a new surface sun crust was forming as slopes moved into the shade later in the day. -Witnessed 4-5, D1-1.5 dry loose avalanches run on some very steep sunny slopes in the late morning. -Many other D1-1.5 dry loose avalanches observed in the surrounding alpine terrain on steep rocky slopes. -Saw one recent shallow soft slab crown, likely failed in the past 48 hours.

Weather

Cloud Cover
few
Wind Loading
previous
Recent Snowfall
30
Snow Avail For Transport
moderate amounts

Clear and cold in the morning with temps in the teens. Warming and increasing clouds as the day progressed. Remarkably little wind, mostly calm, even up in the alpine.

Avalanche

Size
D1.5 R1
Type
L
Count
2
Aspect
SE
Trigger
N
Elevation
7800 ft

Watched 4-5 events on this face beginning around 1100 hours. Multiple older events on this face and most other similar steep terrain (both sunny and shady aspects) in the surrounding area.