Persistent weak layers
- Above 2,400 m
- Size
- 2
Stability: poor · Frequency: few
Weakly bonded old snow and gliding snow require caution.
Stability: poor · Frequency: few
Stability: very poor · Frequency: few
Weakly bonded old snow and gliding snow require caution.
Dry avalanches can in isolated cases be released by a single winter sport participant and reach medium size. This applies in particular on very steep shady slopes above approximately 2400 m. More gliding avalanches are possible, even medium-sized ones. Caution is to be exercised in particular on steep grassy slopes below approximately 2400 m. As a consequence of warming during the day and solar radiation only isolated mostly small wet loose snow avalanches are possible, in particular on extremely steep sunny slopes below approximately 2400 m.
Outgoing longwave radiation during the night will be good over a wide area. The surface of the snowpack will soften during the day, in particular on sunny slopes below approximately 2400 m, as well as in all aspects at low and intermediate altitudes. Below approximately 2000 m: The snowpack is wet all the way through. Isolated avalanche prone weak layers exist in the bottom section of the old snowpack. This applies especially on shady slopes above approximately 2400 m.
Weakly bonded old snow requires caution.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)