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Observer Name: 
Ryan Weber
Observation Date: 
Saturday, March 3, 2012
Occurrence Date: 
Monday, March 2, 2009
Occurence Time: 
Unknown
Region: 
Emigration Canyon
Location Name or Route: 
ID Hwy 36, south side
Elevation: 
Unknown
Aspect: 
Northeast
Slope Angle: 
30
Trigger: 
Unknown
Avalanche Type: 
Soft Slab
Avalanche Problem: 
Persistent Slab
Weak Layer: 
Surface Hoar
Depth: 
2.5'
Width: 
200
Vertical: 
350
Comments: 

Thought this avalanche might be of interests even though it’s across the state line.  We came across this avalanche skiing yesterday (03/03), looked recent to me.  I included a few photos and a kmz file of the location.

Dug a pit at about a 10-15 degree angle, attempted my first isolated column with a ski edge, column slide during the isolation process. More carefully attempted a second isolated column this time the column didn’t slide until the second elbow tap.  The shear layer appeared to be caused by a hoar frost layer about an inch thick (approximately at a 30” depth).  The Slide appeared to be on not much more then a 25 degree angle, NE aspect, with no signs of human triggering.  I was amazed this slope went.

Coordinates: 
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