Valgrisenche

Weak layers in the old snowpack represent the main danger.

Weak layers in the old snowpack represent the main danger.

Avalanches can be released in the weakly bonded old snow. Mostly they are medium-sized and can be released also by a single winter sport participant. Caution is to be exercised in particular on steep shady slopes above approximately 2200 m. In addition the sometimes new snow-covered wind slabs are prone to triggering in some cases still. The numerous rocks hidden by the recent snow are the main danger.

Some snow will fall on Tuesday in some localities. Little snow fell on Sunday over a wide area. The snowpack will be subject to considerable local variations. Snow depths vary greatly at intermediate and high altitudes, depending on the infuence of the wind. Weak layers exist in the snowpack in particular at intermediate altitudes. The weather conditions on Saturday gave rise to slight moistening of the snowpack in particular on very steep sunny slopes below approximately 2200 m. As a consequence of partly cloudy skies a crust formed on the surface on Sunday. The conditions will facilitate a gradual strengthening of the snowpack.

Over a wide area some new snow above approximately 1000 m. The avalanche danger will persist.