Danger level
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Temporary increase in avalanche danger as a consequence of the storm force northerly wind. Wind slabs and weakly bonded old snow represent the main danger.
The fresh wind slabs can be released by a single winter sport participant in all aspects above the tree line. Individual avalanche prone locations are to be found also in areas close to the tree line. Caution is to be exercised in gullies and bowls, and behind abrupt changes in the terrain. Mostly avalanches are medium-sized.
Additionally avalanches can also be released in the old snowpack. 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.
Snowpack
dp.6: cold, loose snow and wind
dp.1: deep persistent weak layer
0 to 5 cm of snow will fall until the early morning. In the south less snow will fall. As a consequence of the stormy weather the wind slabs will increase in size additionally on Saturday.
The new snow and wind slabs are lying on top of a weakly bonded old snowpack, in particular in shady places that are protected from the wind.
Faceted weak layers exist in the snowpack, especially on shady slopes above approximately 2200 m, as well as on sunny slopes above approximately 2500 m.
Isolated whumpfing sounds indicate the existence of a weak snowack.
Tendency
Wind slabs remain prone to triggering. They are to be evaluated with care and prudence in particular in very steep terrain.
