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PROFESSIONAL OBSERVATION FORM
 Start Date: 02.09.17 Name: Savage and others Operation: SAC
 Drainage/Route:  weather and avalanche obs Hailey to Smiley Creek Observed Terrain:  HWY75 corridor Hailey-Smiley Ck Zone/Region:  Wood River Valley
WEATHER OBSERVATIONS
 HN24: 35-40cm HST: Sky: X Precip: S2 Temps: 0-3C
 Ridgeline Wind: Moderate and Intermittent from the SW
 Blowing Snow: L Snow Available for Transport: Large amounts
 Comments: HN24 is at Galena Summit (8700') at 1430hrs. 20cm at Galena Lodge (7300') around the same time.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 Comments: see attached Word doc
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wet Slab

Layer/Depth:
50-100cm

Likelihood of Triggering
Sensitivity:


Spatial Distribution:
Widespread
Terrain
  Primary Concern Comments: Lots of natural activity.
 
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
20-150cm?

Likelihood of Triggering
Sensitivity:
Not Observed

Spatial Distribution:

Terrain
  Problem 2 Comments: Moderate winds at pass level lead me to believe there was a serious wind slab problem today.
 Comments: See attached Word doc
STABILITY TESTS
 Stability Test Results:
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
FILE ATTACHMENTS

2017Feb09_storm_notes.docx