Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
Recently developed dense surface slabs, which were formed by southwesterly winds, lie upon buried layers of surface hoar. Backcountry travelers could trigger these persistent slabs with depths of one to two feet in steep avalanche terrain. In isolated areas, these slabs have some potential to step down to deeper layers of buried surface hoar with depths to three feet.