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PROFESSIONAL OBSERVATION FORM
 Start Date: 02.17.19 Name: VandenBos Operation: SAC
 Drainage/Route:  Cabin Peak Observed Terrain:  Senate/Gladiator Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: Precip: Temps:
 Ridgeline Wind:
 Blowing Snow: Snow Available for Transport:
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 1 northern Boulders Today 3 HS ASr W 10,000 SW-W-NW. Remoted from ridge top, ~100' away
 1 Titus Peak Within past week 3 HS Nr NE 9,700' NE-E
SNOWPACK OBSERVATIONS
 HS: 150cm @ 8,500' on SW 
 Upper Pack: 80-100 cm PP/DF since 2/2 
 Middle Pack: 2/2 down 80-100cm, P hard. two other distinct MFcrs in the mid pack, separated by FCxr, moist in places. 
 Lower Pack: 20-30cm DH, moist at the ground, still dry at the top. All grains showing signs of rounding, but top of layer are the least rounded, least dense, and still bone dry. 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
30-60cm

Likelihood of Triggering
Sensitivity:


Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: 
 
Avalanche Characteristics
Character/Avalanche Problem:
Deep Persistent Slab

Layer/Depth:
100-150cm

Likelihood of Triggering
Sensitivity:


Spatial Distribution:
Widespread
Terrain
  Problem 2 Comments: 
 Comments: Listed wind slabs as primary, as they seem like the most likely problem you'd encounter. That said, the deep slab problem is very real, as evidenced by ASr
STABILITY TESTS
 Stability Test Results: ECTN hard on mid storm interfaces. Must have lost cord, was not run PST/CPST on basal weak layer
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated)    
 Collapsing (isolated)    
SNOW STABILITY
 Snow Stability Rating for your observed area: Fair Confidence: Trend:
 Comments (aspects and elevations of instability, etc): Tough to assign stability or danger ratings with deep slab problems in small areas
FILE ATTACHMENTS

190217_CabinASr.jpg

190218_TitusDeepSlab.jpg