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PROFESSIONAL OBSERVATION FORM
 Start Date: 03.19.17 Name: Davis, Linnet Operation: SAC
 Drainage/Route:  Galena Summit -> Owl Creek Observed Terrain:  7,000-10,100', Primarily S-E-N Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 5-15 cm HST: Sky: OVC Precip: S-1 Temps:
 Ridgeline Wind: Moderate and Intermittent from the SW
 Blowing Snow: M Snow Available for Transport: Small amounts
 Comments: Gusty and intermittent wind from the WSW. Strong at times. Not a lot of snow to move but enough to build fresh wind slab >9,500'. Mild air temps, rain line last night was somewhere near 8,000 and increased to ~8,500' today in Owl Creek. Snow accumulation <2 cm today.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 Several Owl Creek Within past week 1.5 WL N All aspects in Owl Creek below 8,700'. Most looked to release in the last few days.
 5 Upper Owl Creek Today 1 WL AS 8300-9,000' Southeast and south although i'd expect them on all aspects with rain and no/weak freeze last night.
 Comments: Very small slabs triggered on steep rolls near cornices on E-facing slopes above 9600'.
SNOWPACK OBSERVATIONS
 HS:  
 Upper Pack: Upper Elevations:
(3/18) 5-15 cm moist DF
Thin MFcr
(3/15-16) 5-10 cm moist DF
Below, lies a weakly refrozen mix of melt forms from the intense warmup of early last week.

Below 8,500': All moist to very wet melt forms. 
 Middle Pack:  
 Lower Pack:  
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
15-30 cm

Likelihood of Triggering
Sensitivity:
Touchy

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: Generally only an issue above 9,500' with more snow and wind.
 
Avalanche Characteristics
Character/Avalanche Problem:
Loose Wet

Layer/Depth:
5-20 cm

Likelihood of Triggering
Sensitivity:
Touchy

Spatial Distribution:
Widespread
Terrain
  Problem 2 Comments: Easily triggered large rollerballs and small WL below 9,000'. At 8,500' these involved slushy snow from yesterday and today as well as a bit deeper into older snow. Avoided channeled terrain.
STABILITY TESTS
 Stability Test Results:
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (isolated)    
 Comments: Cracking in fresh layers of wind slab and cornice.
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: HIGH Trend: Steady
 Comments (aspects and elevations of instability, etc): MODERATE at all elevations.