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PROFESSIONAL OBSERVATION FORM
 Start Date: 04.14.17 Name: Wieland Operation: SAC
 Drainage/Route:  Spring/Cherry Divide Observed Terrain:  7000-10500 Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 2-11cm HST: 2-11cm Sky: VAR Precip: S3 Temps:
 Ridgeline Wind: Moderate from the S
 Blowing Snow: Prev Snow Available for Transport:
 Comments: 2cm HST at parking lot growing to 11cm @TL. No wind until about 9800 ft and then off and on moderate. Snowing until 1130 with intensities from s-1 to s3. Could make out blue patches of sky during snowfall and even got short periods of sun around 1200.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
SNOWPACK OBSERVATIONS
 HS:  
 Upper Pack: Storm snow sitting on firm crusts in all observed aspects/elevations. Larger, frozen melt forms on surface at lower elevations with smaller ones found near TL.  
 Middle Pack: n/o 
 Lower Pack: n/o 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
2-30cm

Likelihood of Triggering
Sensitivity:
Touchy

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: Sensitive slabs were fairly thin, not connected, and would only crack just beyondski tips. Felt comfortable zipping across large start zones and peeling off these little slabs. Nothing ran more than 20'.
 
Avalanche Characteristics
Character/Avalanche Problem:
Loose Wet

Layer/Depth:
2-11cm

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Specific
Terrain
  Problem 2 Comments: Easy sluffing of dry snow on sheltered norths but not enough to harm anything. Snow become moist on steep south and all aspect below ~8000. Could start pushing moist new snow on crust easily downhill and entrain all new snow but again, not enough snow to cause any harm. Not enough sun to make any naturals possible.
STABILITY TESTS
 Stability Test Results:
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated)   Length: Just beyond ski tip.
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend: