Persistent weak layers
- Above 2,000 m
- Size
- 2
Stability: poor · Frequency: few
Weakly bonded old snow requires caution. Fresh wind slabs on near-ridge shady slopes.
Stability: poor · Frequency: few
Stability: poor · Frequency: few
Weakly bonded old snow requires caution. Fresh wind slabs on near-ridge shady slopes.
Avalanches can be released in near-ground layers and reach quite a large size. The avalanche prone locations are to be found in particular on very steep west, north and east facing slopes above approximately 2000 m. Such avalanche prone locations are rare but are barely recognisable. Caution is to be exercised in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. The fresh wind slabs are in some cases prone to triggering on very steep shady slopes at elevated altitudes. They can be released by a single winter sport participant in some cases. They can reach medium size. Such avalanche prone locations are to be found especially adjacent to ridgelines. In the regions neighbouring those that are subject to danger level 3 (considerable) the avalanche danger is a little higher. On extremely steep slopes small loose snow avalanches are possible, in the event of solar radiation in particular.
15 to 25 cm of snow has fallen. The moderate wind has transported the new snow. Fresh wind slabs have formed especially adjacent to ridgelines and in pass areas. They are lying on the unfavourable surface of an old snowpack on shady slopes. Avalanche prone weak layers exist in the bottom section of the snowpack on west, north and east facing slopes. This applies above approximately 2000 m. Below approximately 2000 m and steep sunny slopes: The old snowpack will be moist.
Wind slabs and weakly bonded old snow require caution.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)