Close
PROFESSIONAL OBSERVATION FORM
 Start Date: 01.04.17 Name: Savage Operation: SAC
 Drainage/Route:  Fox Peak Observed Terrain:  mid elevation NW and W Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 4-8cm? HST: 8-10cm Sky: X Precip: S1 Temps: -6C
 Ridgeline Wind: Light and Intermittent from the Variable
 Blowing Snow: None Snow Available for Transport: Small amounts
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
SNOWPACK OBSERVATIONS
 HS: 80-90cm W and NW see attached pit 
 Upper Pack:  
 Middle Pack:  
 Lower Pack: basal facets are mostly dry, could get them to clump in places though 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
40-90cm

Likelihood of Triggering
Sensitivity:
Unreactive

Spatial Distribution:

Terrain
  Primary Concern Comments: 
 Comments: No wind loading where I was but it was a very brief field mission.
STABILITY TESTS
 Stability Test Results: ECTN8, 80cm (storm snow): ECTN24, 46cm: PST 30/105, SF
SNOW STABILITY
 Snow Stability Rating for your observed area: Good Confidence: MODERATE Trend:
 Comments (aspects and elevations of instability, etc): Middle elevation W and NW only. Might have called the danger LOW and stability VERY GOOD if I had more time to poke around, but I went with a conservative MOD rating. Hard to imagine triggering a slide in non-wind loaded terrain today at this location.
BOTTOM LINE
 Comments: Brief look at this area, similar impression to SVT staff in the past 2 weeks. Thin snowpack that isn't "out of the woods" quite yet. Structure isn't great (basal FC and mid-pack FC associated with degrading crusts) but isn't terrible either. Nothing alarming in stability tests. Seems like it would be hard to buy an avalanche in this area now, but I'm interested to see what happens if we put a rapid >2" of water on it with some wind...fingers crossed that happens!
FILE ATTACHMENTS

2016Jan4_SS_FoxPeak _W_9000.jpg