Vicentine Prealps

Weakly bonded old snow and wet snow represent the main danger.

Weakly bonded old snow and wet snow represent the main danger.

As the day progresses as a consequence of warming during the day there will be a rapid increase in the danger of moist and wet avalanches. This applies in particular on very steep sunny slopes, and at the base of rock walls. The runout zones are to be treated with caution. Backcountry tours should be concluded timely. Avalanches can be released in the old snowpack and reach large size. This applies even in case of a single winter sport participant in some cases. Individual avalanche prone locations are to be found also on steep sunny slopes at elevated altitudes. Caution is to be exercised in particular in little used terrain, as well as at transitions from a shallow to a deep snowpack. In their paths avalanches can entrain the wet snow. This extends the avalanche runout distances. The no longer entirely fresh wind slabs remain for the foreseeable future prone to triggering.

The old snowpack will be prone to triggering in some places. Towards its base, the snowpack is faceted and weak. This applies in particular on steep shady slopes above approximately 2000 m. Remotely triggered avalanches are possible in isolated cases. Towards its surface, the snowpack is unfavourably layered and its surface has a melt-freeze crust that is barely capable of bearing a load.

Steep shady slopes high altitudes: Wind slabs and weakly bonded old snow require caution. Outgoing longwave radiation during the night will be reduced. Steep sunny slopes intermediate and high altitudes: The danger of wet avalanches will already exist in the early morning.