Wind slab
- Above 2,200 m
- Dimensione
- 2
Stability: poor · Frequency: many
Wind slabs represent the main danger. Gliding snow requires caution.
Stability: poor · Frequency: many
Stability: very poor · Frequency: some
Stability: fair · Frequency: few
Wind slabs represent the main danger. Gliding snow requires caution.
The sometimes large wind slabs are prone to triggering in all aspects. Caution is to be exercised in particular above approximately 2200 m, as well as in gullies and bowls, and behind abrupt changes in the terrain. Avalanches can be released easily and reach medium size. The prevalence of avalanche prone locations and likelihood of triggering will increase with altitude. Shooting cracks when stepping on the snowpack can indicate the danger. There is a danger of gliding avalanches and moist snow slides. This applies on steep slopes below approximately 2400 m. Weak layers in the old snowpack can be released especially by large additional loads in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. This applies on very steep slopes above approximately 2200 m. Avalanches can reach large size in isolated cases.
In some localities up to 10 cm of snow will fall above approximately 2000 m. The wind will be moderate to strong. As a consequence of new snow and a strong wind from westerly directions, avalanche prone wind slabs formed. The fresh and somewhat older wind slabs are lying on soft layers in all aspects at high altitudes and in high Alpine regions. Faceted weak layers exist in the centre of the snowpack in particular above approximately 2200 m. The weather conditions will give rise to thorough wetting of the snowpack in particular at low and intermediate altitudes.
Some snow will fall over a wide area. The avalanche danger will persist.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)