Mustang Machine Accident

Observed Apr 19, 2026, 4:00 p.m. PDT · Monashees

This report was submitted with an older form.

Quick report

Weather
Sunny, Warm
Ride type
Alpine slopes, Convex slopes, Mellow slopes, Steep slopes, Sunny slopes
Stayed away
Cut blocks, Open trees
Riding quality
Good
Snow conditions
Heavy, Wet, Wind affected
Avalanche conditions
Avalanche condition slab, Avalanche condition temp

Avalanche report

Comment
Observed within the last 6 hours, suspect snowmobiler attempted 1st ascent made it, dropped the cornice. Came in for a 2nd attempt and didn't make it due to triggering the slide, tumbled the sled down the slope on the April 13 melt freeze crust bed surface, then walked along the top and butt slid down to his sled. Suspect wind slab slid on April 13 crust.
Run length
450
Slab width
50
Trigger type
Snowmobile
Wind exposure
Windward slope
Avalanche size
2
Slab thickness
50
Trigger sub type
Accidental
Start zone aspect
NE
Vegetation cover
Open slope
Start zone incline
35
Avalanche character
Wind slab
Crust near weak layer
Yes
Number of avalanches
1
Start zone elevation
2350
Runout zone elevation
2220
Weak layer burial date
2026-04-13
Avalanche observation
12hrsAgo
Start zone elevation band
Alp
Avalanche occurrence datetime
2026-04-19T22:00:00.000Z