South Ridge at Tamarack

Location Name: 
in bounds After You to South Boundary
Region: 
Other
Date and time of avalanche (best estimate if unknown): 
Mon, 02/04/2019 - 09:00
Location Map: 
United States
44° 40' 31.7568" N, 116° 9' 48.9564" 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: 
35degrees
Trigger type: 
Other - explain below
Crown Height: 
2 ft
Aspect: 
Northeast
Weak Layer: 
Old Snow
Avalanche Width: 
50ft.
Terrain: 
Near Treeline
Elevation: 
7 200ft.
Bed Surface: 
Old Snow
Avalanche Length: 
150ft.
Number of similar avalanches: 
4
Number of people caught: 
0
Number of partial burials: 
0
Number of full burials: 
0
More detailed information about the avalanche: 

These were intentially triggereged avalanches set by patrollers inside the south boundary at Tamarack Resort.  There were 4 separate slides initiated by 2lb hand charges hung above or right at the snow surface.  We saw wind slabs release with 2-3 foot crowns 40' wide running 100'-150' bending over small to medium size trees in its path.  

 

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: 
Cooling
Wind Direction: 
Southeast
Accumulation rate: 
Less than 1 in. per hour
More detailed information about the weather: 

At the time of the observation winds had calmed to moderate and switched direction from west to southeast.