Close
PROFESSIONAL OBSERVATION FORM
 Start Date: 01.21.18 Name: VandenBos Operation: SAC
 Drainage/Route:  Butterfield Observed Terrain:   Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: 8cm Sky: FEW Precip: Temps:
 Ridgeline Wind: Light and Intermittent from the NW
 Blowing Snow: None Snow Available for Transport: Small amounts
 Comments: Rain line ~7,500' during previous storm.
AVALANCHE OBSERVATIONS
None Reported
 Comments: No recent avalanche activity observed
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:

Terrain
  Primary Concern Comments: 
STABILITY TESTS
 Stability Test Results: ECTP12 down 50cm x2 (ENE aspect @ 7,600'). ECTP15, ECTP20 both down 62cm (NNE aspect @ 8,200'). ECTP13, ECTP15 both down 50cm (SE aspect @ 8,700')
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated)    
 Comments: No large collapses but was traveling in terrain that had already been traveled through multiple times.
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend: