Lechquellen Mountains

Main danger: persistent weak layer

Main danger: persistent weak layer

Superficial layers in wind-impacted steep terrain, in wind-loaded gullies and bowls and behind abrupt discontinuities in the terrain are often still prone to triggering. Danger zones increase in size and spread with ascending altitude. Small-to-medium sized slab avalanches can trigger even from one sole skier. In addition, on steep, less-tracked shady slopes in high alpine regions or in transitions from shallow to deep snow, deeply embedded layers inside the snowpack are triggerable by large additional loading. As a result of solar radiation and daytime warming, more slides and small-sized loose-snow avalanchs are possible. On steep grass-covered slopes, isolated small glide-snow avalanches are also possible. Below 2000 m, isolated small avalanches can release in extremely steep terrain.

Slightly higher temperatures and less wind will help the snowpack to settle and consolidate. In ridgeline and pass areas, behind abrupt discontinuities in the terrain and in wind-impacted terrain, older snowdrifts occur, often poorly bonded with the old snowpack surface or riddled with weak intermediate layers. In leeward terrain and at low altitudes the fresh snow is still loose, despite partial settling. At high altitudes, especially on shady slopes, there are weak layers inside the snowpack. These danger zones are not visible to the naked eye. At low altitudes the snowpack is well consolidated by and large.

Nocturnal hours: high fog will extend to nearly 1800 m, beneath that altitude the outgoing radiation will be reduced.. Above the fog, dry air and clear skies, thus, good outgoing radiation. Friday: at 1500-1800 m, reduced visibility due to fog, possibly light snowfall. In high alpine regions, initially sunny and dry conditions. In the afternoon, fog could move in at high altitudes. Icy-cold winds in the ridgelines. At 2000 m: -10 degrees. Light to moderate NE winds.

Tenacious high fogbanks up to nearly 2000 m. Above that, sunshine. Avalanche danger levels are not expected to change significantly.