11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.
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Observation Date: 
1/8/2018
Observer Name: 
Grainger
Location Name or Route: 
Sunset Peak
Weather
Sky: 
Clear
Wind Speed: 
Calm
Snow Characteristics
New Snow Depth: 
5"
New Snow Density: 
Medium
Snow Surface Conditions: 
Powder
Red Flags
Red Flags: 
Poor Snowpack Structure
Avalanche Problem #1
Type: 
Persistent Weak Layer
Trend: 
Same
Problem #1 Comments: 

Dug down on the North aspect of Sunset Peak ~10,300' to look at the facets on crust that served as the bed surface for the 12/24-12/25 slab activity.  Interesting to have no failure on this crust in multiple ECT and CT sites, but did have more stubborn failures on a deeper facet layer (underneath the dirty early-season layer).

 

Snow Profile
Aspect: 
North
Elevation: 
10300
Slope Angle: 
28
Comments: 

Failures were all near the ground, no failures in on the crust layer in a few sites.  It will be interesting to see if these facets serve as the weak layer in future incidents, despite their depth and more stubborn test scores.  

Today's Observed Danger Rating: 
Moderate
Tomorrows Estimated Danger Rating: 
Considerable
Snow Profile Coordinates: 
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