Border Pennine Alps

Individual weak layers exist in the centre of the old snowpack above approximately 2500 m.

Individual weak layers exist in the centre of the old snowpack above approximately 2500 m.

Weak layers in the old snowpack can be released especially by large additional loads especially above approximately 2500 m. Caution is to be exercised in particular at transitions from a shallow to a deep snowpack, and on very steep slopes at intermediate and high altitudes. Sunshine and high temperatures will give rise as the day progresses to a loss of strength within the snowpack in some cases in particular on sunny slopes at low and intermediate altitudes. In the morning, There is a danger of falling on the hard snow surface.

Especially steep sunny slopes low and intermediate altitudes: The old snowpack is hard and its surface has a strong melt-freeze crust. Sunshine and high temperatures will give rise as the day progresses to softening of the snowpack in particular on sunny slopes at low and intermediate altitudes. Especially steep west, north and northeast facing slopes high altitudes and the high Alpine regions: Individual weak layers exist in the old snowpack. In the vicinity of peaks snow depths vary greatly, depending on the infuence of the wind.