Avalanche: 3rd Knob, Beaver Mountain-backside 2/12/2010

Observer Name: 
Jeffrey Larson
Observation Date: 
02/12/2010
Occurrence Date: 
02/12/2010
Occurrence Time: 
Unknown
Region: 
Logan
Logan River
Beaver Creek
3rd Knob, Beaver Mountain-backside
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Location

41° 57' 11.3004" N, 111° 33' 10.7532" W
Avalanche Characteristics
Elevation: 
7700'
Aspect: 
East
Slope Angle: 
30
Trigger: 
Snowboarder
Trigger: additional info: 
Unintentionally Triggered
Avalanche Type: 
Soft Slab
Weak Layer: 
Surface Hoar
Depth (avg): 
12"
Width: 
20'
Vertical: 
50'
Snow Profile
Snow Profile Comments: 

Cracks shooting about four feet on steeper terrain with whumphing.

Very windloaded.... about 8 - 12 inches new with more in the drifted areas

General Comments

Off 3rd peak on beaver's backside near highway 89
Wx: overcast light snow, 30F, strong NW winds

Off 3rd peak on bea

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