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PROFESSIONAL OBSERVATION FORM
 Start Date: 01.10.18 Name: VandenBos Operation: SAC
 Drainage/Route:  Fishhook Creek -> Thompson Bowl Observed Terrain:   Zone/Region:  Sawtooth Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: SCT Precip: Temps:
 Ridgeline Wind: Moderate from the NW
 Blowing Snow: L Snow Available for Transport:
 Comments: Rain crust from yesterday's storm present up to nearly 7,500' had about 5cm low density snow sitting on top (at upper extent of the crust). Above this, 15-20cm fresh.
AVALANCHE OBSERVATIONS
None Reported
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:


Spatial Distribution:

Terrain
  Primary Concern Comments: 
 
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:


Spatial Distribution:

Terrain
  Problem 2 Comments: 
 
Avalanche Characteristics
Character/Avalanche Problem:
Dry Loose

Layer/Depth:


Likelihood of Triggering
Sensitivity:


Spatial Distribution:

Terrain
  Problem 3 Comments: 
STABILITY TESTS
 Stability Test Results:
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated)    
 Collapsing (isolated)    
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
FILE ATTACHMENTS

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McDonald

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Cabin Creek

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Marshall