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PROFESSIONAL OBSERVATION FORM
 Start Date: 12.02.18 Name: VandenBos Operation: SAC
 Drainage/Route:  Galena pass area Observed Terrain:   Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: Precip: S5 Temps:
 Ridgeline Wind: Calm
 Blowing Snow: Snow Available for Transport:
 Comments: WX obs from 1500-1700. Dumping snow most of the time, 10 cms accumulation in 2 hours. Calm winds.
AVALANCHE OBSERVATIONS
None Reported
 Comments: No recent activity observed, though visibility was terrible and I stayed out of avalanche terrain.
SNOWPACK OBSERVATIONS
 HS: Poked around on the north half of the compass, encountered snow depths between 50-65cm. 
 Upper Pack: 25 cm PP from the past few days 
 Middle Pack: 20 cm DF -> FC from the Thanksgiving storm 
 Lower Pack: Thin (2-3cm), decomposing MFcr at the ground with 7-10 cm FC -> DH on top 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
40-50cm

Likelihood of Triggering
Sensitivity:


Spatial Distribution:

Terrain
  Primary Concern Comments: Shaded rose to reflect suspected upper elevation distribution. Likely not continuous but I'm sure you could get into trouble on the compass margins up high. Older middle elevation snowpack is generally restricted to more northerly aspects.
STABILITY TESTS
 Stability Test Results: Pits on northerly aspects. Propagating ECT scores in the 6-10 range, PSTs in the 14-18 range (to END), all down 40-50cm.
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated)    
 Collapsing (isolated)    
 Comments: Cracking and collapsing was more isolated than that observed in other areas but I suspect that is because these slopes have seen a good bit of traffic and are collapsing for the second (or third, or fourth) time.
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend: