Observer Name
Dave Jarvis
Observation Date
Tuesday, February 11, 2014
Avalanche Date
Sunday, February 9, 2014
Region
Provo » Provo Canyon » Timpanogos
Location Name or Route
Timpanogos upper Dry Canyon drainage bowl
Elevation
10,800'
Aspect
Southwest
Slope Angle
Unknown
Trigger
Natural
Avalanche Type
Hard Slab
Avalanche Problem
Persistent Weak Layer
Depth
6'
Width
800'
Vertical
Unknown
Comments
There is a large crown fracture at the top 6' + deep, so it likely broke into older snowpack/slab. Looked like it happened on Sunday triggered by new snow. It could be as much as 2-3 hundred yards wide, and swept most of the upper basin in that aspect. I can't clearly see if it ran lower than around 9000'
Comments
The avalanche course just South-East of Little Baldy that I nicknamed "The Great White Worm" ran, likely on Sunday
also. Multiple triggers, and multiple runs. There are a lot of leeward lips on the west side ridges. One lip at around 10,000' looks like an upper trigger. The runout continued to 6700' and stacked up high enough to match the height of surrounding Maples.
Comments
There are quite a few other lesser avalanches on the Southwest flank of Timpanogos. They all look like damp wet
snow that bulled it's way through any obstacle.
Coordinates