Lechquellen Mountains

Main danger: weak old snowpack layers. Fresh snowdrifts also require caution.

Main danger: weak old snowpack layers. Fresh snowdrifts also require caution.

It is possible to trigger slab avalanches in the old snow particularly by large additional loading. If a release sweeps away the entire snowpack the avalanche can grow to medium size. Danger zones are located especially on steep shady slopes, but also in wind-loaded gullies and bowls in all aspects. Whumpf noises and fractures on the surface are alarm signals. Activities in outlying terrain away from secured ski runs require experience in evaluating the terrain and assessment of avalanche dangers. In addition, trigger-sensitive snowdrift accumulations have been generated particularly in ridgline and pass areas.

The old snowpack is overall unfavorably structured. Intermediate layers inside the snow cover continue to be only moderately bonded to each other. In addition, older snowdrift accumulations on shady high-altitude slopes can be prone to triggering in places. Small, fresh drifted masses occur in ridgeline and pass areas. More than anything else: where fresh snow and drifts are deposited on top of surface hoar, bonding of snow is poor.

Low-pressure front conditions make forecasts unsure. Predominantly cloudy with a bit of snowfall in the morning is likely. In the afternoon, light snowfall is possible widespread. The amounts of anticipated fresh snowfall are uncertain. At 2000m: -4 degrees; at 3000m: -10 degrees. Moderate velocity southerly winds at high altitudes, later shifting to westerly.

At high altitudes, the unfavorably structured snowpack is the main danger. Depending on fresh snow and wind, avalanche danger may increase slightly on Monday.