Middle Lys Valley

Significant increase in danger of moist and wet avalanches as a consequence of warming during the day and solar radiation. In some cases the wind slabs have bonded still only poorly with the old snowpack.

Significant increase in danger of moist and wet avalanches as a consequence of warming during the day and solar radiation. In some cases the wind slabs have bonded still only poorly with the old snowpack.

In the afternoon as a consequence of warming during the day and solar radiation there will be a rapid increase in the danger of moist and wet avalanches. More frequent small to medium-sized moist and wet avalanches are to be expected below approximately 2800 m, in particular on very steep sunny slopes. Since Sunday the wind has been strong in some localities in some regions. Particularly in the valley heads. The soft wind slabs can be released by a single winter sport participant in particular on northeast to southeast to southwest facing aspects above the tree line. These avalanche prone locations are to be found in particular on very steep slopes and in gullies and bowls, and behind abrupt changes in the terrain.

20 to 30 cm of snow, and even more in some localities, has fallen since Friday above approximately 2000 m. In many places new snow is being deposited on bare ground (--), in particular on sunny slopes and at low and intermediate altitudes. Sunshine and high temperatures will give rise as the day progresses to rapid moistening of the snowpack over a wide area in particular on very steep sunny slopes below approximately 2800 m. The new snow and wind slabs are lying on the unfavourable surface of an old snowpack on rather lightly snow-covered shady slopes. Is lying on a crust on steep south, west and southeast facing slopes.

The danger of moist and wet avalanches will already exist in the early morning, in the event of an overcast night especially.