Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely
- Size
- 2–3
The weak snow near the ground has shown little sign of improvement in many parts of this zone. But with very little loading from snow or wind over the past 3 weeks, triggering a large persistent slab avalanche is unlikely. If the persistent slab problem is unlikely, why are we still listing it? The short answer is that many local professionals and savvy recreational sliders/riders are still making terrain choices with this problem in mind. They're minimizing their exposure to terrain with the following characteristics:
- Steep: "prime-time" slopes steeper than about 35 degrees.
- Rocky: slopes with variable snow cover due to the roughness of the terrain.
- Wind-affected: slopes where strong winds produced variable snow cover.