Valsavaranche

In particular steep sunny slopes base of rock walls: The danger of moist and wet avalanches will already increase in the late morning.

In particular steep sunny slopes base of rock walls: The danger of moist and wet avalanches will already increase in the late morning.

The weather will be very mild. Outgoing longwave radiation during the night will be good. The surface of the snowpack will already soften in the late morning. As a consequence of warming during the day and solar radiation more medium-sized to large wet avalanches are possible as the day progresses, in particular in steep rocky terrain, as well as on cut and grassy slopes. Snow slides on road cut slopes. Backcountry tours should be concluded early. In addition the no longer entirely fresh wind slabs must be taken into account. They are in some cases prone to triggering. This applies in particular on very steep shady slopes at intermediate and high altitudes. Single winter sport participants can release avalanches in some places, caution is to be exercised in particular at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. In particular here the avalanches can be released in the old snow and reach quite a large size.

The weather conditions fostered a settling of the near-surface layers. These conditions fostered a stabilisation of the snow drift accumulations in particular on sunny slopes. In its middle, the snowpack is unfavourably layered. The spring-like weather conditions from the late morning will give rise to increasing moistening of the snowpack in particular on steep sunny slopes below approximately 3000 m. Adjacent to ridgelines and in pass areas snow depths vary greatly, depending on the infuence of the wind. There are large frames on the crest. In these regions at intermediate and high altitudes a lot of snow is lying for the time of year. Numerous medium-sized to large moist avalanches have been released in the last few days.

The weather will be warm. The danger of natural wet avalanches will not decrease for the time being.