Avalanche

Lost Trail Pass

Cam MackenzieBitterroot
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Observation photo 1Observation photo 2Observation photo 3Observation photo 4

Quick report

Cracking
specific

Less snow around LT pass than forecasted for the weekend storm. 1.5 feet of new snow came right side up with minimal storm slab properties. Primary concerns are wind slab along ridgelines and persistent slabs failing on the crust/facet layer formed in early December. No data on what the skier triggered avalanche failed on but I will be making a visit later this week to do a crown profile. From photos, it looks to have failed on depth hoar around rocks at the ground. 

Cracking in test slopes, cornice drop triggered 8" deep D1 avalanche. Report of skier triggered remote avalanche via LTSP.

Weather

Air Temp
25
Cloud Cover
broken
Wind Loading
moderate
Recent Snowfall
12hr 3 inches, storm 1.5 feet
Snow Avail For Transport
moderate amounts

Avalanche

Size
D2 R2
Type
HS
Aspect
N
Trigger
AS
Elevation
7700 ft

Thanks to Lost Trail patrol for reporting it to us.