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PROFESSIONAL OBSERVATION FORM
 Start Date: 02.01.19 Name: Savage Operation: SAC
 Drainage/Route:  Salt Bowns Rd - Five Points Creek Observed Terrain:  5600-7600', many aspects Zone/Region:  Soldier Mountains
WEATHER OBSERVATIONS
 HN24: 0 HST: 0 Sky: BKN Precip: Temps: 30s F
 Ridgeline Wind: Light
 Blowing Snow: None Snow Available for Transport: None
AVALANCHE OBSERVATIONS
None Reported
SNOWPACK OBSERVATIONS
 HS: 6900-7600'=70-110cm (see attached pit and photos); <6900=mostly 30-50cm 
 Upper Pack: low elevations: wet/forming crusts or glazed hard wind surfaces (wet surface on all aspects)
middle elevations: NW-N-NE have interesting melted/wet SH that will form a razor crust, then ~2-5cm FC underneath, then DF 
 Middle Pack: low elevations: mixed bag of FC and wind crusts and ice formations, moist to damp
middle elevations: mostly P RG on shady slopes, crusts and rounding FC on solars  
 Lower Pack: low elevations: damp and moist FC and crusts with some melt-freeze from past 10 days
middle elevations: FC and DH 
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Persistent Slab

Layer/Depth:
top of 12/11 DH 80-90cm down

Likelihood of Triggering
Sensitivity:
Stubborn

Spatial Distribution:
Specific
Terrain
  Primary Concern Comments: Could be unreactive now, but I didn't have enough data points to say so.
STABILITY TESTS
 Stability Test Results: CT22, SP, 14cm
CT21, BRK, messy break at 14cm stepped down to 7cm
SNOW STABILITY
 Snow Stability Rating for your observed area: Very Good Confidence: MODERATE Trend:
 Comments (aspects and elevations of instability, etc): I would have avoided large wind drifts and wind slabs on slopes >35*, but all slopes had a very weathered appearance (wind, heat, and sun). Stability rating only applies to terrain below about 8000'.
BOTTOM LINE
 Comments: Variable surfaces for the impending storm snow to fall on: hard wind surfaces (glazed on many slopes), "cooked" surface hoar, some near surface facets, sastrugi, etc. Some of the crusts and glazed, old wind slabs could be slick bed surfaces. The melting/wet surface hoar could form a razor crust above near surface facets on some shady, middle elevation slopes; this is a strange, unpredictable layer but isn't that widespread. The facets and depth hoar in the lower snowpack on shady slopes are looking better from 7600' down, but they could "wake up" with a big loading event. Based on observations in this area earlier this season, I would expect the FC and DH to be weaker/worse from 7600-9000' - I didn't get to that elevation band today. The thin lower elevation snowpack was affected significantly by recent heat and sun. There are/will be lots of slick surfaces that will be getting buried this weekend, but the old facets were moist/healing.
FILE ATTACHMENTS

190201_Soldiers_SaltBowns_7250N_pit.jpg
Snowpit in the Five Points Ck drainage on the Salt Bowns Road: 7250' N aspect.

190201_SoldiersSaltBowns7250N_pit_photo.jpg
Photo of the same snowpit. FC and DH in the lower pack were a little moist and much harder than a few weeks ago.

190201_SoldiersSaltBowns7250N_CT22SP.jpg
CT22, clean break (SP), in top of DH layer at 14cm.

190201_SoldiersSaltBowns7250N_CT21BRK.jpg
CT21, dirty break (BRK) that involved the top and middle of the DH layer.