Close
PROFESSIONAL OBSERVATION FORM
 Start Date: 12.17.16
 Drainage/Route:  Camp Creek Observed Terrain:  8200-9400, mostly solar Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 0 HST: 0 Sky: SCT Precip: Temps: Around 0*F
 Ridgeline Wind: Light and Intermittent from the W
 Blowing Snow: None Snow Available for Transport: Large amounts
 Comments: Cold, but wind chill wasn't a problem.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 Comments: Multiple big crowns observed in the NW facing paths above Cherry Creek. Looked like they ran in the past few days. I believe these have already been reported.
SNOWPACK OBSERVATIONS
 HS: 70-85cm on solar aspects 
 Upper Pack: 25cm F PP 
 Middle Pack: 25cm 4F DF, RG 
 Lower Pack: 25cm 1F RG; 10cm F (slightly moist and rounding) 1-2mm FC 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Widespread
Terrain
  Primary Concern Comments: Observed this problem on WSW around 8500'.
 Comments: No wind slab problem observed, but didn't get into much wind affected terrain.
STABILITY TESTS
 Stability Test Results: Dug on WSW around 8500' on 23* slope. Despite the aspect, this was a shady area. CTE RP 15cm down on mid-storm interface. CTM SC 75cm down on basal FC. ECTP26 75cm down on basal FC.
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated)    
 Collapsing (isolated)    
 Comments: Very few obvious signs of instability. Only localized collapsing in the trees.
SNOW STABILITY
 Snow Stability Rating for your observed area: Fair Confidence: MODERATE Trend: Improving
 Comments (aspects and elevations of instability, etc): Only observed mostly solar aspects at mid elevations.
FILE ATTACHMENTS

IMG_6447.jpg
WSW, but shady, 23* slope at 8300ft.