Wind slab
- Above treeline
- Dimensione
- 3
Stability: very poor · Frequency: some
A precarious avalanche situation will prevail. Wind slabs and wet snow represent the main danger.
Stability: very poor · Frequency: some
Stability: very poor · Frequency: some
Stability: very poor · Frequency: few
A precarious avalanche situation will prevail. Wind slabs and wet snow represent the main danger.
As a consequence of new snow and a strong to storm force wind, further wind slabs will form in all aspects. These can be released easily or naturally. Caution is to be exercised in particular in gullies and bowls, and behind abrupt changes in the terrain above the tree line, and in areas close to the tree line. The prevalence of avalanche prone locations and likelihood of triggering will increase with altitude. In some cases avalanches are large. On steep grassy slopes medium-sized and, in isolated cases, large gliding avalanches are possible. This applies especially on steep sunny slopes below approximately 2600 m, including on steep shady slopes below approximately 2200 m. Areas with glide cracks are to be avoided. As a consequence of the rain moist loose snow avalanches are to be expected at any time, even medium-sized ones. This applies in particular on extremely steep slopes in all aspects below the tree line.
10 to 20 cm of snow, and even more in some localities, will fall. This applies in particular above the tree line. Fresh and somewhat older wind slabs are lying on soft layers in all aspects at elevated altitudes. The rain will give rise to a loss of strength within the snowpack.
Danger level 4 (high) will be reached. A critical avalanche situation will be encountered over a wide area. As a consequence of new snow and strong wind there will be an additional increase in the avalanche danger. 30 to 50 cm of snow, and even more in some localities, will fall. High altitudes and the high Alpine regions: Occasionally large natural avalanches are to be expected as the snowfall becomes more intense. Below approximately 2600 m: As the precipitation becomes more intense there will be an appreciable increase in the danger of wet and gliding avalanches.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)