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PROFESSIONAL OBSERVATION FORM
 Start Date: 01.13.19 Name: VandenBos - OFF DUTY, Linnet Operation: SAC
 Drainage/Route:  Pole Cr/Twin Cr Divide Observed Terrain:  7,600-10,100' Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: Precip: Temps:
 Ridgeline Wind: Calm from the SW
 Blowing Snow: Snow Available for Transport:
 Comments: Strongly inverted temps, mostly calm calm up high with an occasional breeze out of the W/SW
AVALANCHE OBSERVATIONS
None Reported
 Comments: Continuing to see mid-storm crowns from the 1/5-1/7 loading event most places I go.
SNOWPACK OBSERVATIONS
 HS: 70-80cm, WSW aspect, 30 degree slope, 8,300' 
 Upper Pack: 15-20 cm settled snow from recent storms 
 Middle Pack: 30cm 1-2mm FC, 4F+ at base, 4F- on top 
 Lower Pack: 15cm 3-5mm DH, 4F and moist at ground, F and bone dry at top 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:


Spatial Distribution:
Widespread
Terrain
  Primary Concern Comments: DH was the most concerning, mid-pack weak layers were unreactive where observed.
STABILITY TESTS
 Stability Test Results: In pit location described above. ECTN14 down 15cm, ECTN22 down 45cm (DH). PST 25/100 END down 45cm.
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Collapsing (isolated)    
 Comments: A few size-able collapses in wind loaded areas with shallow snow depths.
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend: