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PROFESSIONAL OBSERVATION FORM
 Start Date: 12.29.18 End Date: 12.29.18
 Drainage/Route:  Mores Creek and Summit Creek Drainages Observed Terrain:  6000-8000 feet Zone/Region:  Mores Creek
WEATHER OBSERVATIONS
 HN24: 24 cm HST: 24 cm Sky: SCT Precip: S-1 Temps: -5
 Ridgeline Wind: Strong and Gusty from the NE
 Blowing Snow: M Snow Available for Transport: Large amounts
AVALANCHE OBSERVATIONS
None Reported
 Comments: No natural releases observed. Poor visibility.
SNOWPACK OBSERVATIONS
 HS: 100-110 cm 
 Upper Pack: Windslab and Storm slab in top of precipitation crystals. 
 Middle Pack: Rounding/Sintering 
 Lower Pack: Rounding/Sintering 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
25-30 cm

Likelihood of Triggering
Sensitivity:
Touchy

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: Cracks, SC-C, CTV
 
Avalanche Characteristics
Character/Avalanche Problem:
Deep Persistent Slab

Layer/Depth:
90-100 cm

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Isolated
Terrain
  Problem 2 Comments: Continues to manifest instability through occasional whumps.
 
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
50-60

Likelihood of Triggering
Sensitivity:
Unreactive

Spatial Distribution:
Specific
Terrain
  Problem 3 Comments: Consistently unreactive at Mores Creek Summit since Dec 22.
STABILITY TESTS
 Stability Test Results: Dec 30th: CTVQ1 at 25 cm. ECTN3 at 25 cm. PST70/100 at 95 cm.
OBVIOUS SIGNS OF INSTABILITY
 Marked with checkmark if observed:
 Cracking (widespread)   Length: 10 meters
SNOW STABILITY
 Snow Stability Rating for your observed area: Fair Confidence: HIGH Trend: Improving
 Comments (aspects and elevations of instability, etc): Great skiing at wind-protected slopes with no evidence of instability. Wind impacted slopes were touchy.
BOTTOM LINE
 Comments: SH layer at 50-60 appears not to be a problem anymore at MCS. DH buried layer at the 1-meter depth continues to provide evidence of instability at isolated areas. Snowpack transitioning into a deeper snowpack whereas the problems of the day are being driven by surface snow (new snow and NSF).
FILE ATTACHMENTS

WinterCornerPit.JPG

WinterCornerCrack.JPG