Persistent Slabs
- Alta montaña
- Límite del bosque
- Bajo el límite del bosque
- Probabilidad
- Unlikely
- Tamaño
- 2
Old faceted snow does exists at the highest elevations. In many places you have to near 9000 feet to find it near the ground. This layer has been found near Snowbasin, near Powder Mountain, on Ben Lomond, and in the Monte Cristo area. No avalanches or cracking/collasping have been reported on this layer. For now we are watching this layer. Many people are digging to the ground (which is easy to do) to look for it and performing stability tests on it.
I was near Powder Mountain on Sunday and this layer propagated a crack just as it does in the video below from Doug Wewer on Ben Lomond Peak. For now, its a waiting game to see if additional loading and snowfall coming this weekend will activate this layer and cause avalanches. The long term prospects are good that this layer may heal and go away.