Public Field Report

Observation Date:

January 8, 2022

Submitted:

January 8, 2022

Zone or Region:

Galena Summit and Eastern Mtns

Activity:

Skiing/Snowboarding

Location:

Tweeny ridge

Did you observe any avalanches?

Yes

Avalanche Type:

Other

Size:

Size 2: Could bury, injure, or kill a person

Elevation:

Middle to upper elevations

Aspect:

Comments:

Observed during travel to venue. Evidence of recent wind blown cornice collapses of various sizes and strengths, minor to moderate. Probably occurred evening of the 7th

None reported

Tweeny Ridge, Galena summit:
43.53.0775 x -114.42.0470
Clear skies
Elev. 8519
Light winds
Temp. 18°F
Full profile snowpack test pit observation
Depth to surface 150cm
At depth:
0-30cm : very weak layer of 2-3 mm facets - 4F
30-100 cm weak/moderate persistent slab
100-110 cm slightly less weak persistent slab +- 1F
110-150 cm weak and loose surface snow - F

Compression test result #1 : CTM 20, SC Q1 (collapsed w/energy)
Compression test result #2 : CTH 25, RP Q2
Extended column test result: 35m Q2 RP