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PROFESSIONAL OBSERVATION FORM
 Start Date: 01.29.18 Name: VandenBos Operation: SAC
 Drainage/Route:  Northern Boulders Observed Terrain:   Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: Precip: Temps:
 Ridgeline Wind: Moderate and Intermittent from the SW
 Blowing Snow: None Snow Available for Transport: None
 Comments: Brief shot of sun late in the day but mostly cloudy to overcast otherwise.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 1 Above Senate Cr Yesterday 1 SS S 10,000 Small windslab
SNOWPACK OBSERVATIONS
 HS: 100cm at 8,500 on WSW 
 Upper Pack: 2cm melt freeze crust on 10cm new snow 
 Middle Pack: 25cm DF on 10cm FC (2-5mm) 
 Lower Pack: 4-5cm thanksgiving crust (P-K) on 30-40cm DH (F) 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Unreactive

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: 
STABILITY TESTS
 Stability Test Results: ECTP 12 and 13 down 35-40 cm on 10cm package of 2-5mm facets sitting on Thanksgiving crust.
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
FILE ATTACHMENTS

180129_SenateCrSS_BV.JPG