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PROFESSIONAL OBSERVATION FORM
 Start Date: 02.07.19 Name: Savage Operation: SAC
 Drainage/Route:  Croy Ck/Colorado Gulch Observed Terrain:  5400-6500', all aspects Zone/Region:  Wood River Valley
WEATHER OBSERVATIONS
 HN24: 0 HST: 15-25cm Sky: CLR Precip: Temps: teens F
 Ridgeline Wind: Light
 Blowing Snow: Prev Snow Available for Transport: Small amounts
AVALANCHE OBSERVATIONS
None Reported
SNOWPACK OBSERVATIONS
 HS: 30-120cm 
 Upper Pack: hard and soft wind slabs at ridges on NW-N-NE-E, faceting PP/DF on N-NE, dappled wind surfaces and some crusts on solars 
 Middle Pack: mixed bag of mostly crusts and FC 
 Lower Pack: FC and DH with some degrading crusts on solars 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
50-120cm (DH)

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: Only a conern on heavily wind-loaded slopes. Uncertain how sensitive the problem is now.
STABILITY TESTS
 Stability Test Results: None performed - I was traveling and stomping on wind pillows on slopes <30 degrees.
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated) Depth: 50cm Length: 5m
 Collapsing (isolated) Depth: 30-50cm Length: 1m
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: MODERATE Trend:
 Comments (aspects and elevations of instability, etc): Large wind "whales" at/just below ridges in >35 degree terrain are still suspect. I don't trust slopes >35 degrees that are connected to the large whales either.
BOTTOM LINE
 Comments: No significant cracking or collapsing during a quick trip. I stomped, jumped, and turned on several thick, hard wind pillows to try to get cracking and/or collapsing - no results. I didn't see any significant natural activity. The persistent slab issue is not sensitive or touchy at this point in this area.