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PROFESSIONAL OBSERVATION FORM
 Start Date: 01.26.18 Name: Wieland Operation: SAC
 Drainage/Route:  Senate Observed Terrain:  7-10400' Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 2-4cm HST: 6-15cm Sky: VAR Precip: S-1 Temps:
 Ridgeline Wind: Light from the W
 Blowing Snow: Prev Snow Available for Transport:
 Comments: Broken skies in the Boulders with low clouds/squalls moving in and out all day. Very light snow for periods with no accumulation.
AVALANCHE OBSERVATIONS
None Reported
 Comments: No avalanches seen in Gladiator, Senate, or E. Fork Salmon (not the best viz to the East).
SNOWPACK OBSERVATIONS
 HS: 60-110cm 
 Upper Pack: 6-15cm HST depending on elevation and tree cover. 30cm over hard crust on south. Found very weak and thin crust on SW/S/SE down 8-10cm in a few locations but doesn't appear to be a problem. Looked in favored SH locations and still found none, but traveled through few sheltered north facing slopes. A few 10mm feathers that grew overnight and were blown over today were found above 9700' near ridgetop. 
 Middle Pack: 12/19 down 50-65cm and rounding. No significant results on ECT's. 
 Lower Pack:  
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
1-2'

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: Both south and west wind directions evident in drifts once above 9800'. Only encoutered small cornice growth on slopes lee to the west. Larger pillows on slopes lee to southerly winds. Drifts were stubborn and saw no cracking with aggressive ski cuts. Other alpine lcoations in the area looked to have a similar flavor.
 
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
40-65cm FC

Likelihood of Triggering
Sensitivity:
Unreactive

Spatial Distribution:
Widespread
Terrain
  Problem 2 Comments: Nothing alarming in stability tests as has been the case in the Boulders. No collapsing or cracking.
STABILITY TESTS
 Stability Test Results: ECTX on W @ 9800'. ECTN 29 on S @ 8900'
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
 Comments (aspects and elevations of instability, etc): Pretty easy to pick out and avoid drifts/wind slabs although none were large enough to be much of a concern. FC not concerning in terrain I traveled. Would still access slopes on decent where FC became weaker and slab was still an issue. Below 8000' in trees slab over FC became thin and stumps/logs were greater hazard.