Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Unlikely
- Größe
- 2–3
The persistent weak layers that have troubled us all year are most concerning in this zone. Snow professionals and experienced skiers and riders have largely avoided avalanche terrain in this area for that reason. These layers of weak snow are overlain by dense, hard slabs of snow and have a bit of time to rest during the spell of high-pressure last week. There is still a chance of triggering a persistent slab avalanche on steep, rocky, wind-affected slopes (see example above/right). This accurately describes a good portion of the upper elevation terrain in this zone.
ADDITIONAL DISCUSSION:Small wind slabs formed over the weekend and will continue to grow in size with today's storm. You are most likely to find these slabs near exposed, upper elevation terrain, like ridgelines and in gullies. Though small, these slabs may be sensitive to your weight today. Be alert to the consequences of being caught in even a small slide in the terrain you are traveling in.
There's still a small chance of triggering a persistent slab avalanche, primarily in terrain like shown in the photo—very steep, rocky, and wind-affected. Pole Creek area.