Upper Passeier Valley

Moderate avalanche danger will prevail. Wind slabs and weakly bonded old snow represent the main danger.

Moderate avalanche danger will prevail. Wind slabs and weakly bonded old snow represent the main danger.

The fresh and older wind slabs can be released by a single winter sport participant in some cases in all aspects, in particular in areas close to the tree line, and above the tree line. At elevated altitudes the avalanche prone locations are more prevalent. Mostly avalanches are medium-sized. Additionally avalanches can also be released in deep layers. Such avalanche prone locations are to be found on steep, little used shady slopes above approximately 2200 m and on steep sunny slopes above approximately 2500 m. Especially transitions from a shallow to a deep snowpack are unfavourable. Backcountry touring and other off-piste activities call for caution and restraint.

Fresh wind slabs are lying on weak layers in all aspects above the tree line. Faceted weak layers exist in the old snowpack, especially on shady slopes above approximately 2200 m, as well as on sunny slopes above approximately 2500 m. The snowpack remains in some cases prone to triggering. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack are a clear indication.

The fresh and older wind slabs are bonding only slowly with the old snowpack. The snowpack remains in some cases prone to triggering.