Ulten Valley

Fresh wind slabs require caution.

Fresh wind slabs require caution.

The more recent wind slabs can be released in some cases in particular on very steep shady slopes above approximately 2400 m, especially at transitions into gullies and bowls. The mostly small wind slabs are clearly recognisable to the trained eye. The prevalence of the avalanche prone locations will increase with altitude. Restraint should be exercised because avalanches can sweep people along and give rise to falls. Avalanches can in very isolated cases penetrate near-ground layers of the snowpack and reach medium size.

As a consequence of a moderate to strong southwesterly wind, mostly small wind slabs will form adjacent to ridgelines and in gullies and bowls. The fresh wind slabs are lying on unfavourable layers in particular on steep shady slopes at high altitudes and in high Alpine regions. Shady slopes: The snowpack consists of faceted crystals. Isolated avalanche prone weak layers exist in the old snowpack. Steep sunny slopes: As a consequence of mild temperatures and solar radiation a crust formed on the surface. Less snow than usual is lying. Snow depths vary greatly, depending on the infuence of the wind.

As a consequence of a sometimes strong northwesterly wind, wind slabs will form. Fresh wind slabs require caution.