Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely - Possible
- Size
- 1.5–2.5
Facets and/or surface hoar buried 50 to 80 cm deep are most prominent on north-facing slopes. Avoid areas with a thin or variable (thin to thick) snowpack.
This may be hard to trigger but could produce large avalanches.