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PROFESSIONAL OBSERVATION FORM
 Start Date: 02.04.19 Name: Davis, O'Connor Operation: SAC
 Drainage/Route:  Titus Ridge, Walchers Observed Terrain:  8600-9900, N-E-S Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 15 cm HST: 30 cm Sky: OVC Precip: S1 Temps:
 Ridgeline Wind: Moderate and Steady from the S
 Blowing Snow: M Snow Available for Transport: Large amounts
 Comments: Blue breaks before 11 AM in the Smokys and Boulders then light snow for the majority of the day picking up to S2 by 1500.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 1 Spine Near Eds Face Yesterday SS ASu N 9,300 Poor visibility. This may be the slide reported to the SAC near Titus Ridge. Skier went for a short ride. In their words from that ob - The slide broke ~2' deep in a shallow rocky area with a slope near 45 deg.
SNOWPACK OBSERVATIONS
 HS: 80-130 cm 
 Upper Pack: I dug to the ground in one shallower location on a ENE-facing slope @ 9,600'. The upper half of the pack was 45 cm of 4F+ fresh wind slab. The lower half of the pack was moist to wet under a thin MFcr.  
 Middle Pack:  
 Lower Pack:  
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
30-60 cm

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: Lee to south and southeast wind. Didn't observe upper but it's easy to extrapolate this problem to upper elevations as well.
 
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
80-130 cm

Likelihood of Triggering
Sensitivity:


Spatial Distribution:

Terrain
  Problem 2 Comments: 
 Comments: Hand pits in several locations revealed a good bond at the new/old interface. We observed some easy shears and minor cracking at a mid-storm interface down about 15 cm.
STABILITY TESTS
 Stability Test Results:
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated) Depth: 15 cm  
 Comments: Cracks in mid-storm layer.
SNOW STABILITY
 Snow Stability Rating for your observed area: Good Confidence: MODERATE Trend: Worsening
BOTTOM LINE
 Comments: We found 25-30 cm right-side-up storm snow and a good bond at the old/new. The danger seemed closely tied to whether or not we could find a more cohesive slab. For the most part we found 4F or softer new snow. It was easy to imagine more dangerous conditions in areas with more wind-loading and a stiffer slab. This may have been the case in more areas as the wind as well as snow intensity increased as we were exiting around 300 PM.