Border Graie Alps

The fresh and older wind slabs must be evaluated with care and prudence in all aspects and generally above the tree line.

The fresh and older wind slabs must be evaluated with care and prudence in all aspects and generally above the tree line.

In particular on steep slopes and adjacent to ridgelines and in pass areas medium-sized and, in isolated cases, large slab avalanches are possible as a consequence of the moderate to strong westerly wind. The sometimes large wind slabs can be released by a single winter sport participant in some cases. In particular on very steep shady slopes the avalanches can be released in deep layers of the snowpack and reach large size. Afternoon: Gradual increase in danger of dry avalanches as a consequence of the snowfall.

The sometimes large wind slabs are lying on unfavourable layers. Precarious weak layers exist in the snowpack on steep shady slopes. Over a wide area new snow is lying on surface hoar. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack and natural avalanches serve as an alarm indicating the danger.

Over a wide area bonded new snow to low altitudes. As a consequence of new snow and wind the prevalence and size of the avalanche prone locations will increase during the night.