Avalanche on Lower Manzanita Bowl, Slide Mtn

Location Name: 
Manzanita Bowl, Slide Mtn
Region: 
Mount Rose Area
Date and time of avalanche (best estimate if unknown): 
Sat, 01/21/2017 - 13:20
Location Map: 
United States
39° 18' 15.0408" N, 119° 52' 26.8392" W
See map: Google Maps
US


Red Flags: 
Recent avalanche activity
Whumphing noises, shooting cracks, or collapsing
Recent loading by new snow, wind, or rain
Observation made by: Public
Avalanche Observations
Avalanche Type: 
Dry
Slab
Slope: 
35degrees
Trigger type: 
Skier
Aspect: 
Southeast
Weak Layer: 
Storm Snow
Avalanche Width: 
75ft.
Terrain: 
Below Treeline
Elevation: 
8 000ft.
Avalanche Length: 
700ft.
Number of similar avalanches: 
3
Number of people caught: 
1
Number of partial burials: 
1
More detailed information about the avalanche: 

Storm slab crowns between 10" and 18" running on transition storm snow bed surface (graupel layer). All were skier triggered purposely. Last slide took skier on a 100' ride. Attributed to bad line too low in gully. Skier worked himself to side of slide in gully and was able to self-extricate. Due to nature of terrain debris was not trapped anywhere and remained thin. These aspects will grow more dangerous today as snow continues to load posing the hazard of large destructive slides.

Avalanche Photos: 
Weather Observations
Blowing Snow: 
Yes
Cloud Cover: 
100% of the sky covered by clouds
Air temperature: 
Below Freezing
Wind Speed: 
Moderate
Precipitation: 
Snow
Air temperature trend: 
Cooling
Wind Direction: 
Southwest
Accumulation rate: 
Greater than 1 in. per hour
More detailed information about the weather: 

The current storm cycle will continue to load all slopes on all aspects.