Persistent Slabs
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible
- Größe
- 1–2
A weak layer of buried surface hoar has been observed in the snowpack, now under a couple of feet of snow. This weak layer can produce large avalanches but doesn't always provide warning signs of its existence. You may hear/feel whumping or collapsing in the snowpack, which is a sure bet that surface hoar is beneath you. There is also a good chance that these weak layers will not be felt or observed. In this case, you will only know if the weak layer exists if you dig into the snowpack.