Persistent weak layers
- Above 2,400 m
- Size
- 2
Stability: poor · Frequency: few
Weakly bonded old snow requires caution. Slight increase in danger of moist avalanches as a consequence of solar radiation.
Stability: poor · Frequency: few
Weakly bonded old snow requires caution. Slight increase in danger of moist avalanches as a consequence of solar radiation.
Weak layers in the old snowpack can be released in isolated cases by individual winter sport participants. These avalanche prone locations are to be found in particular on very steep shady slopes above approximately 2400 m and on very steep west and east facing slopes above approximately 2600 m. Mostly the avalanches are medium-sized. As a consequence of solar radiation only isolated moist avalanches are possible. This applies in particular on very steep sunny slopes below approximately 2400 m. Individual gliding avalanches can also occur. Caution is to be exercised on grassy slopes below approximately 2400 m.
Avalanche prone weak layers exist in the old snowpack especially on little used west, north and east facing slopes. This applies on shady slopes above approximately 2400 m, as well as on west and east facing slopes above approximately 2600 m. As a consequence of falling temperatures the snowpack will consolidate. As a consequence of falling temperatures a crust will form on the surface. The old snowpack will be in most cases moist. This applies on sunny slopes in all altitude zones, as well as on shady slopes below approximately 2200 m.
Individual avalanche prone locations are to be found in particular on very steep shady slopes above approximately 2400 m.
Bulletin data: Avalanche Warning Service South Tyrol, avalanche.report (CC BY 4.0)