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PROFESSIONAL OBSERVATION FORM
 Start Date: 03.11.18
 Drainage/Route:  McGown Observed Terrain:  6800-9600, N, S, E Zone/Region:  Sawtooth Mountains
WEATHER OBSERVATIONS
 HN24: HST: Sky: BKN Precip: S-1 Temps:
 Ridgeline Wind: Calm
 Blowing Snow: Snow Available for Transport:
 Comments: greenhousing during the day, great lower elevation snow in am quickly turned to wet sticky mess
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 1 Within past week 1 WL N SE 8600
 Comments: small WL, multiple smaller seen on solar aspects.
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
10-30

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: multiple handpicks dug during ascent of N facing couloirs, most concerning results at higher elevations (thin hs) where advanced facets underlying. at a few isolated locations underlying graupel
 
Avalanche Characteristics
Character/Avalanche Problem:
Wet Loose

Layer/Depth:


Likelihood of Triggering
Sensitivity:


Spatial Distribution:

Terrain
  Problem 2 Comments: 
STABILITY TESTS
 Stability Test Results:
SNOW STABILITY
 Snow Stability Rating for your observed area: Good Confidence: HIGH Trend: Improving
BOTTOM LINE
 Comments: stepping out mindset. continued to evaluate windslab problem as stepping into steeper and higher terrain but no negative feedback in this zone. seasonal temps quickly changing lower elevation snow, WL is developing as an afternoon consideration and impacted travel choice with obvious signs of developing instability (pinwheels, natural slides, etc)
FILE ATTACHMENTS

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