Persistent Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely
- Size
- 3
The likelihood of triggering an avalanche on a deeply buried PWL continues to decrease, but it is still possible. We are now in a low likelihood, high consequence scenario. If you are stepping out into avalanche terrain, evaluate each slope on an individual basis. Aim to ride in areas with a deeper snowpack. Avoid steep, rocky terrain, thinner areas along slope margins, and steep, blind rollovers or convexities. These are all likely trigger points.
If you happen to be poking around in alpine terrain, and you were to trigger a slab of wind-drifted snow, it could step down to the persistent weak layer, causing a much larger and more dangerous avalanche.