Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1–2
Snowmobilers and skiers can trigger slabs 1-3 feet deep on many steep slopes today. These avalanches continue to be triggered on all aspects (shaded and sunny) at all elevations. Slabs could be triggered from a distance by the first rider or even wait until the last person in your group is riding the slope to release. Avalanches have the potential to propagate across large spans, including entire slopes. This was illustrated within the last several days on Barber’s Point, where a natural avalanche released across the entire slope. These avalanches continue to be triggered on all aspects (shaded and sunny) at all elevations. Slabs could be triggered from a distance by the first rider or even wait until the last person in your group is riding the slope to release. If you are uncertain about the terrain around you, sticking to a lower-angle option with little consequence is the best way to mitigate this problem.
(1/20/2024)
The cliffs at Togwotee, E aspect, 9,192 Photo: Benton Patterson