Avalanche: Grizzly Gulch 11/13/2011

Observer Name: 
Nate Blouin
Observation Date: 
11/13/2011
Occurrence Date: 
11/13/2011
Occurrence Time: 
11:00am
Region: 
Grizzly Gulch
Little Cottonwood Canyon
Salt Lake
Location Name: 
lower patsy marley ridge/grizzly gulch
Printer-friendly version

Location

40° 35' 33.8244" N, 111° 37' 0.9516" W
Avalanche Characteristics
Elevation: 
9700'
Aspect: 
North
Slope Angle: 
Unknown
Trigger: 
Skier
Avalanche Type: 
Soft Slab
Weak Layer: 
Facets Above Crust
Depth (avg): 
12"
Width: 
250'
Vertical: 
150'
General Comments

skier dropped in on lower elevation, lower angle slope, second skier on slope i believe, remotely triggered the slide a hundred or so feet away that wrapped around a ridge. ran near the ground in a lot of spots, also stepped down from the new storm snow to below last weeks storm in a number of places. max depth was probably 18-20 inches, starting zone slope angle probably between 35 and 40 degrees. heard a whumph from that area pretty loudly a few minutes beforehand. ran to and deposited on where the alta cat would run later in the year, debris maybe 2-3 feet deep. not surprising!

Photo:  Kobernik

IMG_3557.jpg
General Comments 2

Here is another small pocket up the ridge to the east of the bigger slide.  It is quite possible it released sympathetically to the larger slide.  It is also possible that it released remotely from someone walking the ridge above it.

Kobernik

IMG_3555.jpg
Javascript is required to view this map.

Site Built by Dharmatech
Site Refresh by Flint Creative