Skier trigged Avalanche near Crystal crag

AVALANCHE OBSERVATION
Crystal crag

Drainage:

Submission Info
Steve Mace
Forecaster
Friday, March 27, 2020 - 12:15pm
Red Flags: 
Recent avalanche activity
Recent loading by new snow, wind, or rain
Avalanche Type: 
Dry
Slab
Slope: 
38degrees
Trigger type: 
Skier
Crown Height: 
2 ft
Aspect: 
North
Weak Layer: 
Other - explain below
Avalanche Width: 
75ft.
Terrain: 
Near Treeline
Elevation: 
9 800ft.
Bed Surface: 
Old Snow
Avalanche Length: 
100ft.
More detailed information about the avalanche: 

SS-AS-R1-D1.5-I

Skier triggered avalanche reported in the Lakes Basin. This avalanche occurred on a North aspect at about 9800’ near the Crystal crag and was intentionally triggered. The reporting party measured the crown height to be 16-24” deep and the avalanche ran about 100’ down the slope. They did not conduct a full crown profile but report the bed surface to be the New/Old interface and suspect buried near-surface facets as the weak layer.

Avalanche Photos: 
Blowing Snow: 
No
Air temperature: 
Below Freezing
Wind Speed: 
Light
Precipitation: 
Air temperature trend: 
Warming
Wind Direction: 
North
Accumulation rate: 
More detailed information about the weather: 
Number of People Caught: 
0
37° 35' 21.4944" N, 119° 0' 49.7952" W

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