Professional Observation
Basic Information
Observation Details
Observation Date:
December 28, 2019 - December 28, 2019Submitted:
December 28, 2019Observer:
ProZone or Region:
Soldier and Wood River Valley MtnsLocation:
Lake Creek --> Triple --> Badger. All aspects. 6000-8400'Signs of Unstable Snow
Recent Avalanches?
None ObservedCracking?
IsolatedCollapsing?
Isolated
evidence of N wind yesterday with 10-30cm 4F windslab, ATL along Triple ridge. multiple collapses but small and isolated. Shooting cracks 1-2m.
Snow Stability
Stability Rating:
FairConfidence in Rating:
ModerateStability Trend:
WorseningBottom Line
Status quo / CONS on upper elevation N aspects in regards to Persistent Slab Prob.
unlike prior days obs (which were just a bit south and just a bit lower), buried surface hoar layer 12/7 easily seen above about 7800'.
results on this LOC very variable depending on overlying slab properties. In most locations ECTN with mod strength, but in a few locations ATL, with recently wind stiffened overlying F+ to 4F 40cm slab --> propagating results.
Advanced Information
Weather Summary
Cloud Cover:
ClearWind:
CalmSnowpack Observations
HS 50-55cm N aspects above 7500', 10-15cm on solars
PS 10cm -- 0cm on windhit ridgelines.
above about 7800' still finding 12/7 (tipping over but still primed (photo) down about 30-35cm.
per BTM line : results variable depending on overlying slab properties.
Avalanche Problems
| Problem | Location | Distribution | Sensitivity | Size | Comments |
|---|---|---|---|---|---|
Persistent Slab
|
|
Layer Depth/Date: down 30-40cm. 12/7 still possible at upper elevations. not apparent in mid elevations, lack of snow solars |
|||
Wind Slab
|
|
Layer Depth/Date: upper 10-20cm |