Avalanche: Green Canyon 2/22/2010

Observer Name: 
Lawson, Shirey
Observation Date: 
02/22/2010
Occurrence Date: 
02/22/2010
Occurrence Time: 
Unknown
Region: 
Green Canyon
Logan
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Location

41° 47' 46.1184" N, 111° 41' 46.6116" W
Avalanche Characteristics
Elevation: 
8200'
Aspect: 
Northwest
Slope Angle: 
38
Trigger: 
Skier
Trigger: additional info: 
Unintentionally Triggered
Avalanche Type: 
Soft Slab
Weak Layer: 
Surface Hoar
Depth (avg): 
12"
Depth Range: 
18" to
Width: 
45'
Vertical: 
100'
People Involved
Caught: 
1
Carried: 
1
Partly Buried: 
1
General Comments

bluebird, 20-25 degrees, wind very light from west.

Soft slab, north west, 8200 ft, crown broke off a roller ~38 degrees down onto a 30 degree slope, 1 ft. deep, 45 ft. wide, ran 60 ft, surface hoar on a hard layer,

nch thick knife hard crust with hoar on top

light old snow, soft with very variable pockets. some places was consistent and deep and some had two layers of hard crust @ 6 inches and 18 inches deep

22676_10150100392335693_751310692_11305116_6631355_n.jpg
General Comments 2

a North West aspected mountain due south of Mt. Jardine. Logan/Green Canyon...  Trigger was a hard stop and skier falling on uphill side, broke crown just below two other skiers.

may have been slightly wind loaded, it was a small clearing amongst trees

22676_10150100392345693_751310692_11305117_1036863_n.jpg
General Comments 3

Considerable danger. You guys have been right on. we knew we were on a dangerous aspect and slope.

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