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PROFESSIONAL OBSERVATION FORM
 Start Date: 12.22.18 Name: Lundy Operation: SAC
 Drainage/Route:  Mushroom Ridge Observed Terrain:  7700-9500', E-S-W Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: FEW Precip: Temps:
 Ridgeline Wind: Light
 Blowing Snow: Snow Available for Transport: Small amounts
 Comments: Fairly warm in the sun - surfaces took a little heat but didn't become moist on the lower slope angles I observed. High clouds moved in over the Sawtooths in the afternoon.
AVALANCHE OBSERVATIONS
None Reported
 Comments: Nothing new observed.
SNOWPACK OBSERVATIONS
 HS: 60-80cm, obs below are from SW at 9000' 
 Upper Pack: 50cm of recent and settled snow since 12/11. F going to 4F 
 Middle Pack: thin 1F hard MFcr from interval prior to 12/11. Might have had a little faceting on top. 
 Lower Pack: 20-30cm of F FC2-3mm - snow from 11/22-12/11 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
12/11,40-50cm

Likelihood of Triggering
Sensitivity:
Reactive

Spatial Distribution:
Widespread
Terrain
  Primary Concern Comments: 
STABILITY TESTS
 Stability Test Results: In pit above (9000, SW) ECTP 14, PST29/100end on 12/11 FC below MFcr. See video on SAC site
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Collapsing (isolated)    
 Comments: Collapses seemed smaller and more muffled in this area
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend: