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Observer Name: 
mark white
Observation Date: 
Sunday, March 4, 2018
Occurrence Date: 
Sunday, March 4, 2018
Occurence Time: 
12:00pm
Region: 
Grandeur
Location Name or Route: 
Grandeur Peak
Elevation: 
7000
Aspect: 
North
Slope Angle: 
37
Trigger: 
Skier
Trigger: additional info: 
Intentionally Triggered
Avalanche Type: 
Soft Slab
Avalanche Problem: 
Storm Slab
Weak Layer: 
Density Change
Depth: 
12"
Width: 
40
Vertical: 
200
Comments: 

Triggered this avalanche on the north facing side of Grandeur Peak just above 7000ft in elevation. It failed on a density inversion about 8 to 10 inches down in the new snow then quickly stepped down to the old snow, new snow interface. I was a little surprised on how fast it ran, and the width of it.

Photos: debris pile, crown, cracking, the video is of some smaller slabs I triggered

Video: 
Coordinates: 
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