Persistent weak layers
- Above 2,300 m
- Size
- 2
Stability: poor · Frequency: some
The wind will be strong. Fresh and older wind slabs require caution.
Stability: poor · Frequency: some
Stability: poor · Frequency: some
The wind will be strong. Fresh and older wind slabs require caution.
Wind and new snow: In particular in gullies and bowls and behind abrupt changes in the terrain further wind slabs will form. The fresh and older wind slabs represent the main danger. They are to be assessed critically. Avalanches can in some places be released, in particular by large loads and reach medium size. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack are a clear indication of a weakly bonded snowpack. The numerous rocks hidden by the recent snow are the main danger.
Fresh and older wind slabs are lying on the unfavourable surface of an old snowpack in all altitude zones. Large-grained weak layers exist in the old snowpack on shady slopes. The old snowpack remains subject to considerable local variations at high altitudes and in high Alpine regions. Below approximately 2000 m less snow than usual is lying.
Increase in avalanche danger as a consequence of new snow and strong wind. This applies especially in the regions exposed to the foehn wind.
Bulletin data: Arpa Piemonte (via EAWS / avalanche.report)