Wind slab
- Above 2,200 m
- Size
- 2
Stability: poor · Frequency: some
Wind slabs require caution.
Stability: poor · Frequency: some
Wind slabs require caution.
The fresh and older wind slabs are prone to triggering above approximately 2200 m. Mostly avalanches are medium-sized and can be released even by a single winter sport participant. Caution is to be exercised in particular adjacent to ridgelines and in gullies and bowls. In the regions neighbouring those that are subject to danger level 3 (considerable) the avalanche prone locations are more prevalent. Weak layers in the old snowpack can be released in very isolated cases in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. This applies on very steep shady slopes above approximately 2400 m, especially in the north. The avalanche prone locations are rather rare. Avalanches can reach medium size.
As a consequence of a strong to storm force northwesterly wind, wind slabs will form. These are lying on soft layers in all aspects at elevated altitudes. Faceted weak layers exist in the centre of the snowpack in particular above approximately 2400 m.
The weather conditions will foster a gradual settling of the snow drift accumulations. As a consequence of warming, the likelihood of wet loose snow avalanches being released will increase for a while in particular on very steep sunny slopes.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)