Tressle Creek road

Location Name: 
9 mile area on Tressle ck road
Region: 
Cabinet Mountains
Date and time of avalanche (best estimate if unknown): 
Thu, 03/18/2021 - 16:00
Location Map: 
United States
48° 20' 30.5412" N, 116° 14' 10.8924" W
See map: Google Maps
US


Red Flags: 
Rapid warming
Observation made by: Public
Avalanche Observations
Avalanche Type: 
Wet
Slope: 
36degrees
Trigger type: 
Natural
Crown Height: 
3 ft
Aspect: 
South
Weak Layer: 
Other - explain below
Avalanche Width: 
100ft.
Terrain: 
Below Treeline
Elevation: 
5 000ft.
Bed Surface: 
Ground
Avalanche Length: 
350ft.
More detailed information about the avalanche: 

The avalanche was a Natural release. This slide path has about an every other year freaquency. This avalalnche ussually starts with a glide crack that is visible from the Tressle ck road. Ussually the trigger is a sunny day or a rain on snow event. In this case, the sunshine on 3/18 caused the snowpack to become so warm that it couldn't support itself anymore causing the Wet slab avalanche

R2/D3 Wetslab

* Avalanche crossed the Tressle Creek road and 60' below the road. Avalanche debris on the road was approximately 8' deep, 50' wide*

Avalanche Photos: 
Weather Observations
Air temperature: 
Precipitation: 
Air temperature trend: 
Wind Direction: 
Accumulation rate: 
More detailed information about the weather: