Natural avalanche by third creek, above Incline Village

Location Name: 
Third Creek Drainage
Region: 
Mount Rose Area
Date and time of avalanche (best estimate if unknown): 
Sun, 01/22/2017 - 08:45
Location Map: 
United States
39° 17' 3.66" N, 119° 56' 33.414" 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: 
Slab
Trigger type: 
Natural
Aspect: 
Southeast
Weak Layer: 
Storm Snow
Avalanche Width: 
50ft.
Terrain: 
Near Treeline
Elevation: 
8 000ft.
Bed Surface: 
Unknown
Avalanche Length: 
200ft.
Number of people caught: 
0
Number of partial burials: 
0
Number of full burials: 
0
More detailed information about the avalanche: 

We dug a quick pit on a southfacing 28 degree slope. I dont have the profile drawn up but here is the data- CT1 Q2 @ 15cm (windslab) CT16 Q2 @ 100cm, Jan 8 rain crust well bonded at 165cm. HS 290cm F hardness down 120cm, 4F  120-165cm down , K @ Jan 8 crust. 

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

Warmer snow and high winds overnight caused upside down snow pack conditions. We saw several small avalanches in micro features as well as a larger slide across third creek from the knoll we were skinning up. We were not able to visualize the crown, nor did we desire to even get close. We stuck to low angle slopes below treeline.