Persistent Slabs
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 2–3
Two layers that cause concern:
- In many parts of the region, with the exception potentially being near Coquihalla summit, settling storm snow may overly a surface hoar layer found around treeline elevations in sheltered areas. This layer previously produced large avalanches that have propagated far.
- In the north half of the region, a weak layer is buried near the bottom of the snowpack which continues to produce sporadic very large avalanches.