Avalanche: Salt Lake 12/24/2010

Observer Name: 
Kikkert
Observation Date: 
12/24/2010
Occurrence Date: 
12/24/2010
Occurrence Time: 
Morning
Region: 
Salt Lake
Location Name: 
Days-Silver
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Location

40° 36' 3.546" N, 111° 38' 4.758" W
Avalanche Characteristics
Elevation: 
10000'
Aspect: 
North
Northeast
East
Trigger: 
Skier
General Comments

 Quite a few slides observed.  These included soft slabs from during the storm on N facing in West Bowl of Silver Fork and in Upper Days.  From Silver Fork we observed a couple human triggered slides in Days and and possibly a natural.

  1. Upper Days.  North facing.  Skier triggered.  Looks like it was triggered on a ski cut and looked to only be the upper foot or so of new snow.  Maybe a hundred or so feet wide, running maybe 3/4 of the bowl (could see the bottom, so just guessing here).
  2. Upper Days, easternmost chute (chute closest to Silver).  North facing.  Triggered with a cornice by another party.  There was an old crown in here, about a foot deep from a soft slab running during or near the end of the storm.  Cornice drop caused the slide to step down to the interface between the low density stellers and the newer, denser snow.  Approximately 15-20 inches deep.  I believe the party who triggered it said it ran full track.  We saw sensitivity on this same layer in Silver Fork.
  3. Main Days.  East facing.  Looked to be from today, but couldn't tell from a distance whether it was just the upper snow like in Upper Days, or if it stepped down.  Maybe 100 or so feet wide...running maybe 200 feet.
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