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PROFESSIONAL OBSERVATION FORM
 Start Date: 01.24.19 Name: Lundy Operation: SAC
 Drainage/Route:  Baldy OB - Warm Springs Observed Terrain:  8700, WNW Zone/Region:  Wood River Valley
WEATHER OBSERVATIONS
 HN24: HST: Sky: FEW Precip: Temps:
 Ridgeline Wind: Light
 Blowing Snow: Snow Available for Transport: Small amounts
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 1 Xmas Eve, Baldy OB, Warm Springs Within past week 2 SS ASu W 8700 150', 2' deep, unknown vertical run
 Comments: Few details on this slide, but likely triggered on 1/22. Sounds like skiers traversing below the boundary rope may have remotely triggered it. There had been some wind but it didn't appear there were tracks going into it, but there were tracks nearby.
SNOWPACK OBSERVATIONS
 HS: Obs from near crown: HS 90cm 
 Upper Pack: 50cm PP,DF,RG F to 1F at base. Snowfall since 1/5 
 Middle Pack: 15cm FC 1-2mm 4F (1/5) 
 Lower Pack: 25cm DH 3-4mm F (12/11) 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
1/5 & 12/11 - 60cm

Likelihood of Triggering
Sensitivity:
Reactive

Spatial Distribution:
Widespread
Terrain
  Primary Concern Comments: Observed location.
STABILITY TESTS
 Stability Test Results: ECTP21, PST 40/100 end - all 60cm down on 12/11 DH
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
FILE ATTACHMENTS

190124_xmas_eve_ASr_resized.jpg
Triggered avalanche from 1/22 (?) in Baldy OB (Xmas Eve)