Wind slab
- Above treeline
Considerable avalanche danger will persist. Wind slabs and weakly bonded old snow represent the main danger.
Considerable avalanche danger will persist. Wind slabs and weakly bonded old snow represent the main danger.
As a consequence of a gathering storm force northeasterly wind, avalanche prone wind slabs will form over a wide area. The fresh wind slabs can be released easily, even by a single winter sport participant,. Mostly avalanches are medium-sized. The avalanche prone locations are to be found in all aspects above the tree line. At elevated altitudes and in the regions exposed to the foehn wind the avalanche prone locations are more prevalent. Remotely triggered avalanches are possible. Individual natural avalanches are not ruled out. 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. Backcountry touring and other off-piste activities call for caution and restraint.
In particular in the northeast up to 10 cm of snow will fall on Saturday. In the south less snow will fall. As a consequence of a gathering storm force wind from northeasterly directions, further wind slabs will form. These will be deposited on soft layers. The snowpack will become increasingly prone to triggering. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack are a clear indication. 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.
As a consequence of low temperatures the snowpack can not consolidate on Sunday. The snowpack remains prone to triggering in some places. Considerable avalanche danger will persist.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)