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PROFESSIONAL OBSERVATION FORM
 Start Date: 02.21.17 Name: Davis Operation: SAC
 Drainage/Route:  Highway 75 Ketchum to Stanley Observed Terrain:   Zone/Region:  Smoky & Boulder Mountains
WEATHER OBSERVATIONS
 HN24: 25-50 cm HST: Sky: OVC Precip: S1 Temps:
 Ridgeline Wind: Strong and Steady from the W
 Blowing Snow: I Snow Available for Transport: Large amounts
 Comments: Broken skies near WRV at 1100. Socked in at and over the pass into the Stanley Basin. This morning was some of the most impressive snow transport iv'e seen near Baldy. Winds seem to have eased a bit by 1300 with less transport in lower elevation terrain.
AVALANCHE OBSERVATIONS
 No. Location Date Size Type Trigger Aspect Elevation Comments
 Comments: Several of the crowns I saw yesterday were completely obscured. There was evidence of natural slab avalanches on the WRV side of the pass as well as small wind slabs just over the pass on cross-loaded shoulders near the overlook. A couple look like they ended up in the road.
AVALANCHE PROBLEM ASSESSMENT
Avalanche Characteristics
Character/Avalanche Problem:
Wind Slab

Layer/Depth:
n/o

Likelihood of Triggering
Sensitivity:
Not Observed

Spatial Distribution:
Widespread
Terrain
  Primary Concern Comments: Some loading along low elevation Boulder foothills and mouths of canyons in the WRV.
STABILITY TESTS
 Stability Test Results:
SNOW STABILITY
 Snow Stability Rating for your observed area: Confidence: Trend:
BOTTOM LINE
 Comments: Still lots of snow moving at upper and middle elevations. Galena Pass was down to one lane due to drifting and small slab releases near the Pass. Had a few glimpses into the alpine and didn't any activity but continued loading and flat light may have played a role in that.