Persistent weak layers
- Above treeline
- Size
- 2
Stability: fair · Frequency: some
The surface of the snowpack is frozen, but not to a significant depth and will soften during the day. In particular adjacent to ridgelines on north facing slopes sometimes large wind slabs formed.
Stability: fair · Frequency: some
Stability: fair · Frequency: few
The surface of the snowpack is frozen, but not to a significant depth and will soften during the day. In particular adjacent to ridgelines on north facing slopes sometimes large wind slabs formed.
The visible wind slabs can be released, especially by large additional loads, in particular on steep north facing slopes above approximately 2500 m. Soft weak layers exist in the snowpack in particular on shady slopes.
The snowpack will become in some cases unfavourable. In the last few days visible wind slabs formed especially adjacent to ridgelines and in gullies and bowls. Also shady slopes where weaknesses exist in the old snowpack are dangerous. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack serve as an alarm indicating the danger.
Bulletin data: ARPA Lombardia (via EAWS / avalanche.report)