Weisseck, Muhr Valley

At high and high-alpine altitudes, ridgeline snowdrifts demand caution.

At high and high-alpine altitudes, ridgeline snowdrifts demand caution.

Avalanche danger as of 2400m is moderate, danger is low below that altitude. Near ridgelines at high and high-alpine altitudes there are shallow drifts behind protruberances in the landscape behind ridges. Generally, large additional loading is necessary to trigger a small-sized slab avalanche in, sunny, steep rocky terrain, due to solar radiation, small loose-snow avalanches can trigger by large additional loading.

Loosely-packed fresh fallen snow is settling to an increasing degree, now covering older snowdrifts. At high and high-alpine altitudes the NE winds can transport the snow to ridgelines. At high and high-alpine altitudes the September snow has persisted and now serves as a compact base. In isolated cases these layers contain faceted crystals, they could serve as a fracture surface. The snow is distributed highly irregularly, ridges broad and narrow are often completely windblown, and even in other places the fresh fallen snow insufficiently blankets the snow base.

Nighttime skies will mostly be star-studded and dry. In northern regions, low-lying high-foglike clouds will persist. Winds at all altitudes will be light to moderate. On Thursday during the course of the day, high-altitude cloudbanks from the northeast can make skies gray, make visibility diffuse. Winds at all altitudes will be mostly light (peaks at high-altitudes at 30 km/hr) from the NE. Milder: at 2000m, rising from -4 to +1 degree; at 3000m, from -9 to -5 degrees. Nocturnal skies will be cloudless, with light winds.

Danger is expected to gradually recede.