Tamarack Resort avalanche on The Spine

Location Name: 
The Spine
Region: 
Other
Date and time of avalanche (best estimate if unknown): 
Wed, 02/13/2019 - 10:20
Location Map: 
United States
44° 40' 44.1048" N, 116° 9' 32.1372" W
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
Slope: 
28degrees
Trigger type: 
Natural
Crown Height: 
3 ft
Aspect: 
Northeast
Weak Layer: 
Storm Snow
Avalanche Width: 
400ft.
Terrain: 
Near Treeline
Elevation: 
7 400ft.
Bed Surface: 
Storm Snow
Avalanche Length: 
500ft.
Number of similar avalanches: 
1
More detailed information about the avalanche: 

Natural slide below the top of the spine. A similar slide was triggered by patrol with a ski cut on the upper portion. Bed surface was wind affected snow from yesterday loaded with new snow from the past 24hrs.

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

57" reported in the past 3 days with greater than 12" in the past 12 hours. Continuous winds speeds of 30-50 MPH observed in the past 12 hrs with gusts of 40-70 MPH.