11th Annual Utah Snow & Avalanche Workshop Open and Motorized Sessions Oct. 27th.
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Observation Date: 
12/17/2016
Observer Name: 
Hardesty, Wilson
Location Name or Route: 
UFO Bowls
Weather
Sky: 
Few
Wind Speed: 
Calm
Snow Characteristics
New Snow Depth: 
20"
Snow Surface Conditions: 
Powder
Snow Characteristics Comments: 

Significant rain up to 8000' or so, saturating many layers in the mid-pack.  see profile.  Cold new snow now well insulating this layering.  

Only a couple inches of low density snow sit above yesterday's frontal passage supportable graupel crust. Smooth, fast creamy skiing.  

Red Flags
Red Flags: 
Recent Avalanches
Avalanche Problem #1
Type: 
New Snow
Trend: 
Decreasing Danger
Problem #1 Comments: 

See profiles - thin graupel "slab" failing on lower density snow in upper 20cm though not corresponding to conditions in terrain we traveled.    Size 1 low density snow sluffing running on supportable, stout "graupel" crust in steeper terrain.

Avalanche Problem #2
Type: 
Wind Drifted Snow
Trend: 
Decreasing Danger
Problem #2 Comments: 

Welded in along our travels along the UFO bowls though perhaps a few drifts above 9600' likely still potentially active with human weight. 

Stability much improved after natural cycle.  Would imagine areas of Moderate in mid and upper elevation wind drifted terrain with deeper slabs very unlikely even with heavy loads.  Low elsewhere.  Sluffing likely still a consideration for Sunday.  

Photos of some longer running naturals in the Provo mountains: to include west facing Cascade ridge, NE chute of Elk Point, and North UFO Bowl.

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