Persistent weak layers
- Above 2,400 m
- Size
- 2
Stability: poor · Frequency: some
Weak layers exist in the top section of the snowpack.
Stability: poor · Frequency: some
Stability: poor · Frequency: few
Weak layers exist in the top section of the snowpack.
The new snow and wind slabs of recent weeks are lying on the unfavourable surface of an old snowpack in particular on shady slopes, also on sunny slopes above approximately 2600 m. Single backcountry tourers can release avalanches in some places. Such avalanche prone locations are barely recognisable, even to the trained eye. Warming: As a consequence of the moist air mostly small moist and wet avalanches are possible, in particular on extremely steep slopes.
In particular along the border with France, along the border between Valais and Italy 25 to 40 cm of snow fell on Sunday above approximately 2700 m. On Monday numerous medium-sized and, in isolated cases, large avalanches were observed. Sunshine and high temperatures gave rise to moistening of the snowpack in particular on sunny slopes below approximately 2900 m. As a consequence of falling temperatures a crust formed on the surface during the last few days, this also applies on shady slopes below approximately 2000 m. In particular at intermediate altitudes less snow than usual is lying. On sunny slopes below approximately 2200 m hardly any snow is lying. Evening and night: 5 to 15 cm of snow will fall until Saturday above approximately 1800 m.
As a consequence of new snow and wind there will be only a slight increase in the danger.
Bulletin data: Regione Autonoma Valle d'Aosta (via EAWS / avalanche.report)