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PROFESSIONAL OBSERVATION FORM
 Start Date: 03.17.18 Name: Wieland Operation: SAC
 Drainage/Route:  Galena shoulder Observed Terrain:  7300-10k Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: 40-45cm Sky: X Precip: S-1 Temps:
 Ridgeline Wind: Light and Intermittent from the SW
 Blowing Snow: None Snow Available for Transport: Large amounts
 Comments: Snowing S6 when arrived in AM. This diminished to some S1 squalls. Picked back up to S6ish on exit around 300 PM.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 1 Today 1.5 L ASc N 9500 Only path I poked at. Easy sluff on 40°.
SNOWPACK OBSERVATIONS
 HS:  
 Upper Pack: 40-45 cm from the past 24 hours from the bottom of drainage until 10k high point. Recent HST sitting on 0-10cm from early 3/14. 3/14 snow started around 7900'.  
 Middle Pack:  
 Lower Pack:  
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Dry Loose

Layer/Depth:
45cm

Likelihood of Triggering
Sensitivity:
Reactive

Spatial Distribution:
Widespread
Terrain
  Primary Concern Comments: Anything with enough pitch to get moving. Threshold seemed to be around 40°, regardless of aspect.
 Comments: Did not observe any windslab problems up to 10k. Visibility was not great but the rest of ascent ridge did not looks blown off to rock.
STABILITY TESTS
 Stability Test Results:
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
BOTTOM LINE
 Comments: Only problem observed was dry loose on steep. Would have felt comfortable dropping in steep shot where I triggered slide had I not been solo. No midstorm instabilities observed and storm snow was very light density. Wind was calm with small periods of light although at some point had moved a small bit of snow on the ridge with nothing being deposited in start zones.