Bollettino valanghe

On shady slopes isolated avalanche prone locations in uppermost and mid-level layers

On shady slopes isolated avalanche prone locations in uppermost and mid-level layers

Avalanche danger is low, only isolated avalanche prone locations on very steep shady slopes at high and high-alpine altitudes. The avalanches are mostly small-sized. In high alpine regions, medium-sized avalanches can in isolated cases trigger from deeper layers of the snowpack, particularly on steep slopes where the snow is shallow or in transitions from shallow to deeper snow. Brisk to strong westerly winds will arise during the day, generating new small snowdrift accumulations. As a result of daytime warming and solar radiation, small moist loose-snow avalanches can trigger naturally in steep rocky terrain, or be triggered by winter sports enthusiasts. Small avalanches or slides can sweep along skiers in exposed terrain and force a fall. At intermediate and low altitudes, particularly on sunny slopes, glide-snow avalanches are still possible. Caution below glide cracks.

Amid springlike weather conditions over the last few days, the snowpack has been able to settle and is stable widespread. Weak layers in the old drifts or near the uppermost melt-freeze crust can still be triggered in isolated cases in steep shady terrain at high and high-alpine altitudes. In addition, on very steep shady slopes in high alpine regions there are isolated weak layers at mid-level inside the snowpack. On sunny slopes the surface softened and formed melt-freeze crusts during the nighttime hours. On shady slopes without wind influence there is still powder. In exposed zones there are often wind crusts or else windblown down to the melt-freeze encrusted old snow. Gullies and bowls are filled with drifts. As a result of brisk to strong westerly winds, small snowdrifts will accumulate in exposed terrain at high and high-alpine altitudes during the day today.

Also on Sunday, sunshine and cloudless skies in all mountain regions. As evening approaches some cloud could come up. Cold air will move in gradually during the day. Temperature at 2000 m: +1 to +5 degrees. Brisk to strong westerly winds will intensify at high altitudes.

In Bregenzerwald and Allgäu Alps, skies will often be overcast on Monday, light intermittent snowfall is possible. Further south, hardly any snowfall, and a chance for some sunshine in the afternoon. High altitude winds will be moderate, stronger in high alpine region, from west to northwest. Avalanche danger could increase slightly in the northern regions depending on amounts of fresh snow.