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PROFESSIONAL OBSERVATION FORM
 Start Date: 12.18.17 Name: VandenBos Operation: SAC
 Drainage/Route:  Silver Creek Observed Terrain:  6,700-10,000' Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 0 HST: Sky: BKN Precip: S-1 Temps:
 Ridgeline Wind: Moderate from the NW
 Blowing Snow: L Snow Available for Transport: Small amounts
 Comments: Not a lot of fresh snow left for transport, mostly just facets being blown around. Scattered clouds at start of tour( (~1330) with increasing clouds throughout the afternoon. A few flurries brought no measurable accumulation.
AVALANCHE OBSERVATIONS
None Reported
 Comments: Nothing recent. A bit of wet loose debris here and there but nothing noteworthy.
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:


Likelihood of Triggering
Sensitivity:
Unreactive

Spatial Distribution:

Terrain
  Primary Concern Comments: 
 Comments: Fresh slabs were unreactive, even where they sat on icy crusts.
STABILITY TESTS
 Stability Test Results:
SNOW STABILITY
 Snow Stability Rating for your observed area: Very Good Confidence: Trend: