Persistent Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Likely
- Dimensione
- 3
The shallow snow near the ground in many areas is loose, sugary, and faceted. Avalanches on buried persistent weak layers could be remote triggered on steep slopes with shallow snow and poor snow structure, you might trigger one from a distance, or below. The weak faceted snow will cause slopes to be unstable with a heavy load and formation of a new slab layer from yesterday's storm. A smaller wind slab avalanche might step down into old snow as it descends and become large and dangerous. The sugary snow will remain weak and many slopes will probably stay unstable for a while.
Here is some December snow, (now well developed facets) I found buried on the west side of Beaver Mountain. The weak sugary snow is stable on most slopes for now, but could easily become unstable again with loading from tomorrow's rather warm and moist looking storm.