Left on tour curious about HS on mid elevation solar and PWL problem at mid elevation solar. Persistent hard signs of instabliity and formal obs with poor structure, low friction, and propagation confirmed skier triggered possible in avalanche terrain. Status quo, found no reason to be enthusiastic about changing terrain selection.
Generally calm. W 5-10. OVC - BKN.
PS 20-25cm, PB 40-50
No new naturals
Camp Ck, 9200’, S, 20*
HS 90
Upper: (87-90) 3cm F- PP overnight overlying 10-15 cm F+ PP from 12/4
Mid: (40- 87) 47-50 cm 4F PP/ DF from 11/27
Lower: (0 -40) 1-2mm FC overlying 5cm thick MFCr down 50cm (*LOC*) , 2-3mm dry FC to base
HS thin on ridgelines, and solars where wind not attenuated by terrain or tree cover
Noticeable Increased density to 11/27 storm slab seen in pit from prior obs on 12/2 & 12/3 but suspect some degree of wind compression (not just settlement) as PS improved quickly with descent off ridge
Problem | Location | Distribution | Sensitivity | Size | Comments |
---|---|---|---|---|---|
Persistent Slab |
|
Layer Depth/Date: Down 5Ocm Weak Layer(s): Nov 27, 2022 (FC) Comments: CT12SC, ECTP13 on 11/27 |
Confirmed problem at mid elevation solar
Closed avalanche terrain, and based on hard signs instability during travel and formal tests found no compelling reason to change plans.