Persistent weak layers
- Above 2,400 m
- Size
- 2
Stability: poor · Frequency: few
Wind slabs and weakly bonded old snow represent the main danger.
Stability: poor · Frequency: few
Stability: poor · Frequency: few
Wind slabs and weakly bonded old snow represent the main danger.
As a consequence of new snow and a moderate to strong wind from northwesterly directions, rather small wind slabs formed in the last two days in gullies and bowls and behind abrupt changes in the terrain. The fresh and older wind slabs are lying on weak layers. In isolated cases the avalanches are medium-sized and can be released by a single winter sport participant, caution is to be exercised in particular on very steep shady slopes above approximately 2400 m, and on wind-loaded slopes. In the regions exposed to the foehn wind and on sunny slopes moist and wet avalanches are possible from the early morning, but they will be mostly small. The numerous rocks hidden by the recent snow are the main danger.
In some localities 2 to 10 cm of snow, but less in some localities, has fallen since Sunday above approximately 2000 m. The sleet gave rise in the afternoon to moistening of the snowpack in all aspects below approximately 2300 m. The high temperatures from the early morning will give rise to thorough wetting of the snowpack in particular on sunny slopes at intermediate altitudes. Weak layers exist in the snowpack. At low and intermediate altitudes from a snow sport perspective, insufficient snow is lying.
Slight increase in danger of moist snow slides as a consequence of warming.
Bulletin data: Regione Autonoma Valle d'Aosta (via EAWS / avalanche.report)