Avalanche
- Slab Width
- 183 m
- Weak Layer
- Depth Hoar
- Trigger Type
- Snowmobiler
- Vertical Fall
- 152 m
- Avalanche Type
- Soft Slab
- Slab Thickness
- 91 cm
- Trigger Detail
- Unintentionally Triggered
- Start Zone Aspect
- Northeast
- Avalanche Problem
- Persistent Weak Layer
- Start Zone Elevation
- 2926 m
Ryan Shea Photos:
UAC Notes: Two sled tracks disappear over the cornice onto the slope below. The avalanche is estimated to be 2–4 feet deep on average and around 600 feet wide. It ran full track to the flats below, dropping roughly 500 vertical feet. The bed surface exposes dirt and grass, indicating failure on facets or depth hoar near the base. Likely a repeater slope. Check out the field day observation HERE.
UAC photos below - all from NE ridge at 9600':
On Tuesday March 4, 2025- forecasters from the UAC were able to get to the toe of this avalanche. Read the full observation HERE.
Photo (red arrows) showing burial locations:
Photos of the avalanche:
Incident
- Number Caught
- 2
- Number Carried
- 2
- Number Injured
- 1
- Number Partly Buried
- 2
Wasatch County SAR Notes: Subject was dug out when I arrived and was being treated by Life Fight nurse. Father and son were sledding on the Ant Knolls face and they both jumped the cornice and rode down the 40+ degree east face. On the 3rd jump, the father triggered the slide and tried to ride it out but was caught carried about 800' down and was pinned up against a 3" trunk diameter pine tree at toe of the slide and was partially burial with serious injury to leg and ribs. His son was carried down but only partial buried and was not injured and was able to rend aid to father quickly. We carried the father about 150 yards down to Life Flight. The Son rode his snowmobile out.