Avalanche: Grizzly Gulch

Observer Name
Nate Blouin
Observation Date
Sunday, November 13, 2011
Avalanche Date
Sunday, November 13, 2011
Region
Salt Lake » Little Cottonwood Canyon » Grizzly Gulch
Location Name or Route
lower patsy marley ridge/grizzly gulch
Elevation
9,700'
Aspect
North
Slope Angle
Unknown
Trigger
Skier
Avalanche Type
Soft Slab
Depth
12"
Width
250'
Vertical
150'
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

Comments

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

Coordinates