Persistent Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Unlikely
- Dimensione
- 1–2
Persistent weak layers including surface hoar and faceting crusts can be found across our region and are primarily located in the top 1-2 ft of the snowpack. A number of recent natural avalanches appear to have slid on these layers, but stability tests are showing that they are becoming increasingly more difficult to trigger. While these layers continue to heal and build strength, weaknesses are more likely to be preserved on open, northerly slopes around treeline.