Wind slab
- Above treeline
- Size
- 2
Stability: poor · Frequency: some
New snow and wind slabs represent the main danger. Weakly bonded old snow above approximately 2400 m.
Stability: poor · Frequency: some
Stability: poor · Frequency: some
New snow and wind slabs represent the main danger. Weakly bonded old snow above approximately 2400 m.
As a consequence of new snow and a storm force northwesterly wind, avalanche prone wind slabs formed in the last few days especially in gullies and bowls and behind abrupt changes in the terrain. Some fresh snow as well as the wind slabs that are forming above the tree line are to be evaluated with care and prudence. The brittle wind slabs can be released by a single winter sport participant in all aspects above the tree line. These are barely recognisable because of the poor visibility. Also slopes close to the tree line are unfavourable. Avalanches are medium-sized. Additionally avalanches can also be triggered in the old snowpack and reach large size, especially on steep shady slopes above approximately 2400 m, as well as on steep sunny slopes above approximately 2800 m. Experience in the assessment of avalanche danger is required.
In particular from the Oetztal Alps via the Karwendel Mountains to the High Tauern 10 to 20 cm of snow will fall. Some snow will fall on the Main Alpine Ridge and to the south. The snowpack will be subject to considerable local variations. Snow depths vary greatly above the tree line, depending on the infuence of the wind. The new snow and wind slabs remain prone to triggering above the tree line. The snowpack will be prone to triggering in areas close to the tree line. The new snow and wind slabs will be deposited on soft layers on wind-protected shady slopes at elevated altitudes. Faceted weak layers exist in the centre of the snowpack. This applies in particular on steep northwest, north and northeast facing slopes above approximately 2400 m, as well as on steep east and west facing slopes above approximately 2600 m, also on steep sunny slopes above approximately 2800 m. Shooting cracks when stepping on the snowpack and whumpfing sounds confirm the unfavourable bonding of the snowpack.
Gradual decrease in avalanche danger.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)