Manto nevoso

Lolo Pass

West Central Montana Avalanche FoundationBitterroot
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Foto dell’osservazione 1Foto dell’osservazione 2

Quick report

Collapsing
specific

We experienced a collapse on our uphill route and so did another group. We had three different groups traveling and two of the groups experienced collapsing near the top of Hamburger hill. One group was on an east face and one group was on a west face

Weather

Air Temp
24 F
Cloud Cover
clear
Wind Loading
moderate
Rain Elevation
Unknown
Recent Snowfall
NO
Snow Avail For Transport
small smounts

Weather was as forecast. Beautiful day to be out in the mountains.

Snowpack

There is a ayer of buried surface hoar down about 20 cm that propagated. There is also a small layer of basal facets right on the ground. Height of snow was 100 - 110. We repeatedly got CT results on the BSH layer. CT 12 SP down 20 cm. ECTP 12 down 20 cm. None of our tests appear to break on that ground layer, but it was very easy to pull the columns from the ground on those old basal facets.