Wind slab
- Above treeline
- Size
- 2
Stability: poor · Frequency: some
Old wind slabs require caution.
Stability: poor · Frequency: some
Old wind slabs require caution.
Wind slabs can be released even by a single winter sport participant. Mostly the avalanches are medium-sized. The avalanche prone locations are to be found in particular on steep slopes above approximately 2000 m, and adjacent to ridgelines and in gullies and bowls. Weak layers in the old snowpack can be released in some places by people in particular on very steep shady slopes. Areas with glide cracks are to be avoided. This applies in particular on steep grassy slopes in all aspects especially above the tree line.
The fresh wind slabs are poorly bonded with the old snowpack in all aspects and at elevated altitudes. Towards its base, the snowpack consists of faceted crystals.
Wind slabs are to be evaluated with care and prudence. The weather conditions will facilitate a gradual stabilisation of the snow drift accumulations. As a consequence of solar radiation individual loose snow avalanches are to be expected.
Bulletin data: Meteotrentino, avalanche.report (CC BY 4.0)