Persistent weak layers
- Above 2,000 m
- Größe
- 2
Stability: poor · Frequency: few
Weakly bonded old snow requires caution.
Stability: poor · Frequency: few
Weakly bonded old snow requires caution.
Avalanches can in isolated cases be released in the old snowpack and reach medium size. The avalanche prone locations are to be found in particular on very steep west, north and east facing slopes above approximately 2000 m. Caution is to be exercised in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. In addition the small wind slabs are prone to triggering in isolated cases, in particular adjacent to ridgelines on shady slopes at elevated altitudes. These can in isolated cases be released by people.
Over a wide area 5 to 15 cm of snow, and even more in some localities, has fallen since Saturday. The wind was moderate in the vicinity of peaks. The fresh wind slabs are lying on the unfavourable surface of an old snowpack in particular on near-ridge shady slopes at elevated altitudes. Above approximately 2000 m: Avalanche prone weak layers exist in the bottom section of the snowpack on west, north and east facing slopes. Towards its surface, the snowpack consists of faceted crystals. This applies on shady slopes. Below approximately 2000 m and steep sunny slopes: The old snowpack will be moist.
Weakly bonded old snow requires caution. As a consequence of a sometimes strong northerly foehn wind, sometimes avalanche prone wind slabs will form.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)