Wind slab
- Above treeline
- Size
- 2
Stability: poor · Frequency: some
Wind slabs and weakly bonded old snow require caution.
Stability: poor · Frequency: some
Stability: poor · Frequency: few
Wind slabs and weakly bonded old snow require caution.
As a consequence of a strong to storm force northerly wind, large surface-area wind slabs formed in the last few days. Adjacent to ridgelines and in gullies and bowls and on steep slopes dry slab avalanches are possible. Avalanches can be released, in particular by large loads. This applies in particular above the tree line, as well as at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. Precarious weak layers exist in the old snowpack on very steep shady slopes. These avalanche prone locations are to be found in particular in east to north to west facing aspects. Medium-sized and, in isolated cases, large avalanches are possible especially adjacent to ridgelines and in gullies and bowls.
The sometimes storm force wind has transported some snow. As a consequence of a strong to storm force wind from northerly directions, sometimes large wind slabs formed in the last few days in particular in gullies and bowls and behind abrupt changes in the terrain. The fresh wind slabs are lying on the unfavourable surface of an old snowpack in particular on east to north to west facing aspects and generally above the tree line. The solar radiation will give rise as the day progresses to softening of the snowpack below approximately 2000 m.
Friday: The avalanche danger will persist.
Bulletin data: Meteotrentino, avalanche.report (CC BY 4.0)