Skier triggered Avalanche above lake Mary rd

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AVALANCHE OBSERVATION
Above lake Mary Rd - out of bounds from ski area

Drainage:

Submission Info
Forecaster
Tuesday, February 21, 2017 - 11:30am
Red Flags: 
Recent loading by new snow, wind, or rain
Avalanche Type: 
Dry
Slab
Slope: 
40degrees
Trigger type: 
Skier
Crown Height: 
Less than 1 ft
Aspect: 
Northeast
Weak Layer: 
Storm Snow
Avalanche Width: 
75ft.
Terrain: 
Below Treeline
Elevation: 
8 750ft.
Bed Surface: 
Old Snow
Avalanche Length: 
300ft.
Number of full burials: 
0
More detailed information about the avalanche: 

Skier triggered Avalanche above lake Mary road out of bounds of ski area. 30cm 4Finger windslab ontop of 30cm fist layer (failed in this layer), ran on melt-freeze crust which formed on Sunday pre-storm.  75ft wide, 60cm crown(see attached photo), ran about 300ft to just above Rd.  Skier lost his skis, minor injuries.  Walked out.  

Avalanche Photos: 
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Strong
Precipitation: 
Snow
Air temperature trend: 
Wind Direction: 
Southwest
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 
Number of People Caught: 
1
37° 37' 44.1588" N, 119° 0' 20.088" W

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