Sawtooth Avalanche Center

Public Field Report

Observation Details

Observation Date:
March 31, 2023
Submitted:
April 1, 2023
Zone or Region:
Challis Area and Lost Rivers
Activity:
Skiing/Snowboarding
Location:
Double springs Pass road

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
No
Avalanche Type:
Hard Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
Middle
Aspect:
W
Comments:
Relatively short, but steep slope adjacent to the road. 2 meters + near the ridge. 1 m deep closer to the road. Remote triggered while snowmobiling up the road. Snow surface cracking observed for another 150 yards beyond north flank of the avalanche. HS-AM-R2-D2-O.

Observed Avalanches

Did you observe any avalanches? 
Yes
Avalanche Type:
Soft Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
Upper
Aspect:
W
Comments:
Numerous avalanches observed in the lost River range near and above tree line, E of double springs pass road. Most were: SS-N-R2-D2-O, and one was R4-D3.5. Numerous R1-D2 wet loose avalanches on more southerly aspects.

Signs of Unstable Snow

Did you see shooting cracks? 
Yes, Isolated
Did you experience collapsing or whumpfing? 
Yes, Widespread

Observations

Stuck to slopes less than 30 degrees. Avoided avalanche path runouts

Media

Public Field Report: Double springs Pass road
Triggered from the road. Snowmobile track visible below the avalanche toe
Public Field Report: Double springs Pass road
Public Field Report: Double springs Pass road