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PROFESSIONAL OBSERVATION FORM
 Start Date: 02.24.18 Name: VandenBos Operation: SAC
 Drainage/Route:  Butterfield Observed Terrain:  highway to ~8,500'. Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: Precip: Temps:
 Ridgeline Wind:
 Blowing Snow: Snow Available for Transport:
 Comments: Late afternoon wx obs: Snowing to S1 in the late afternoon with clouds peeling back and temperatures dropping around sunset. ~5cm HST. Calm winds.
AVALANCHE OBSERVATIONS
None Reported
 Comments: No recent activity observed.
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
30cm

Likelihood of Triggering
Sensitivity:
Touchy

Spatial Distribution:

Terrain
  Primary Concern Comments: IFcr as reported by SVHS, buried 30cm deep, found up to ~8,500'.
 
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
70cm

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:

Terrain
  Problem 2 Comments: 10-15cm package of FCsf
STABILITY TESTS
 Stability Test Results:
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated) Depth: 30cm Length: 10's of feet
 Collapsing (isolated) Depth: 30cm Length: 10's of feet
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend: