Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible - Likely
- Größe
- 1.5–3
At 60 to 100 cm deep, a weak layer of surface hoar is at prime depth for rider triggers to produce large avalanches. It can be most likely triggered on steep roll-overs in wind-sheltered terrain around treeline.