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PROFESSIONAL OBSERVATION FORM
 Start Date: 03.08.18 Name: Wieland Operation: SAC
 Drainage/Route:  Durrance Observed Terrain:  6300-9100 Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 6-12cm HST: 6-12cm Sky: X Precip: S1 Temps:
 Ridgeline Wind: Light from the SW
 Blowing Snow: Snow Available for Transport:
 Comments: Snowing S2 on PM tour which stopped around 230ish and then picked back up briefly around 300. Broken sky on exit.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 Several Konrad N E 7700-9k
 Comments: Several D1-D2 slides in Konrad Ck from last cycle. Similar crown depths as most others that have been observed.
SNOWPACK OBSERVATIONS
 HS: See pit. 
 Upper Pack:  
 Middle Pack:  
 Lower Pack:  
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
70-100cm

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:

Terrain
  Primary Concern Comments: 
 Comments: Some cracking (up to 100' in length but generally very localized) in fresh ridgetop windslab but only 3-4" thick and not a problem.
STABILITY TESTS
 Stability Test Results: See pit. ECTP's 19-21 in pit at 7800' on same weak layer as higher pit results/pst cut.
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated)    
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
BOTTOM LINE
 Comments: Stability worse with elevation loss as weak layer was much easier to affect, although tough to feel comfortable with thicker slabs expected higher up once you are able to trigger something. Facets below slab not as well developed as drainages just south of here but were not confidence inspiring.
FILE ATTACHMENTS

DurrancePit.jpg