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ADVANCED OBSERVATION FORM
 Start Date: 01.30.18
 Drainage/Route:  Coyote creek Observed Terrain:  North Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: HST: 90cm Sky: OVC Precip: S-1 Temps: 0C
 Ridgeline Wind: Strong and Gusty from the NW
 Blowing Snow: Snow Available for Transport: Large amounts
 Comments: Warm with high winds. Snow was saturated and wet up to about 7800'
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 1 Pt 8493 Today 1 SS N 8493 stomp on flats about 6ft from convexity triggered a small pocket. Snow broke and ran on unsupported Rocky feature. Snow in main pocket did not move far due to supportive terrain below.
SNOWPACK OBSERVATIONS
 HS: 90cm SP: 19cm BP: to waist 
 Upper Pack: 90-50cm fist to 4f. 
 Middle Pack: 41-50cm -> large grained facets
39-41cm -> firm crust 
 Lower Pack: Moist facets that showed some signs of bonding 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Touchy

Spatial Distribution:
Widespread
Where did you find this problem?
  Primary Concern Comments: 
STABILITY TESTS
 Stability Test Results: CT14 SC at crown on large grained facets capping the crust 50cm down.
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (widespread)    
 Collapsing (widespread)    
 Comments: Wet snow from 7100 to about 7800 produced widespread and large collapses while walking on skin track. Above 8000 collapses became less frequent but could be caused with a small hop.
SNOW STABILITY
 Snow Stability Rating for your observed area: Poor Confidence: MODERATE Trend:
BOTTOM LINE
 Comments: Lots of signs that the snowpack a low at mid elevations is not happy. Signs of instability were easy to come by.
FILE ATTACHMENTS

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