Persistent weak layers
- Above 2,400 m
- Größe
- 3
Stability: poor · Frequency: some
Weakly bonded old snow requires caution. Loose snow avalanches and gliding avalanches are still possible.
Stability: poor · Frequency: some
Stability: poor · Frequency: few
Stability: very poor · Frequency: few
Weakly bonded old snow requires caution. Loose snow avalanches and gliding avalanches are still possible.
Weak layers in the old snowpack can be released in some places even by individual winter sport participants. The avalanche prone locations are to be found in particular on west, north and east facing slopes above approximately 2400 m. Avalanches can reach large size in isolated cases. Isolated whumpfing sounds can indicate the danger. Fresh wind slabs can be released easily in particular on very steep shady slopes above the tree line, caution is to be exercised in particular adjacent to ridgelines and in pass areas. Such avalanche prone locations are sometimes covered with new snow and are therefore difficult to recognise. On extremely steep slopes small to medium-sized loose snow avalanches are possible. On steep grassy slopes small and medium-sized gliding avalanches are possible, especially below approximately 2400 m. Backcountry touring and other off-piste activities call for careful route selection.
Over a wide area 5 to 15 cm of snow fell on Sunday. In some localities up to 10 cm of snow will fall on Monday, in particular in the west. The wind will be moderate adjacent to ridgelines. The new snow and wind slabs of the last few days are lying on the unfavourable surface of an old snowpack in particular on west to north to east facing aspects above approximately 2400 m. Fresh wind slabs are lying on soft layers on near-ridge shady slopes. The wind slabs are covered with new snow in some cases and therefore difficult to recognise. The covering of new snow is fairly homogeneous; its surface consists of loosely bonded snow.
The avalanche danger will persist. Weakly bonded old snow represents the main danger.
Bulletin data: Avalanche Warning Service South Tyrol, avalanche.report (CC BY 4.0)