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PROFESSIONAL OBSERVATION FORM
 Start Date: 03.20.18 Name: VandenBos, Preuss Operation: SAC
 Drainage/Route:  Galena Peak Observed Terrain:  7,300-10,000' Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: Precip: Temps:
 Ridgeline Wind:
 Blowing Snow: Snow Available for Transport:
 Comments: ~5cm new snow. Calm winds up to 10k, not observed above.
AVALANCHE OBSERVATIONS
None Reported
 Comments: None observed, visibility was poor.
SNOWPACK OBSERVATIONS
 HS: 135 cm on WNW @ 8,500' 
 Upper Pack:  
 Middle Pack:  
 Lower Pack:  
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Not Observed

Spatial Distribution:

Terrain
  Primary Concern Comments: Not directly encountered, but suspect this is a much more likely problem than the persistent problem described below.
 
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:

Terrain
  Problem 2 Comments: 2/14 interface has 70cm of snow on top of it here. Snow from early march has settled into a dense 40cm 1F+ slab.
STABILITY TESTS
 Stability Test Results: ECTP 24 and 25, both down 70cm on 2/14. PST 30/100 and 34/100 END, both down 70cm on 2/14.
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend: