Western Nonsberg Alps

Wind slabs and weakly bonded old snow require caution.

Wind slabs and weakly bonded old snow require caution.

More recent wind slabs can be released even by a single winter sport participant. In isolated cases 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. As a consequence of warming during the day and solar radiation more natural loose snow slides are possible as the day progresses. 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. The new snow can be released easily or naturally in all aspects above the tree line. 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.