Weisseck, Muhr Valley

Very hard surfaces. Caution in high alpine regions where snow is shallow.

Very hard surfaces. Caution in high alpine regions where snow is shallow.

Moderate danger above 2300 m in places, low danger below that altitude Intermediate layers at ground level of the old snow merit special caution. These hidden, not easily recognized avalanche prone spots can, by large additional loading, trigger a slab avalanche in isolated cases. This applies to high alpine regions in very steep, relatively shallow-snow (also rocky) terrain, particularly in extended N/E aspects. Triggered avalanches can grow to medium size. Isolated fresh snowdrift patches can be easily triggered, but their major risk is forcing a fall.

Melt-freeze encrusted surfaces (steel-hard, icy, breakable, snowdrift patches) dominate. Even in high alpine regions above 2600 m, the surfaces are strikingly marked by hard wind crusts. Fresh snowdrift patches are rare, mostly they are thin and small.Inside the snowpack the latest rounds of fresh snow are well bonded. A potential trigger-sensitive layer of faceted and soft old snow is evident in some high altitude places. Current stability tests show, however, that there is little tendency towards fracture propagation, at least not area-wide.

On Tuesday, the day begins with adequate visibility, clouds will pass through and create diffuse light. In the afternoon cloud cover will intensify, in evening or night some light snowfall is possible (snowfall level 1700 m). Winds will be westerly, blowing at light strength (moderate strength in high alpine regions). Temperature at 2000 m: -1 degree; at 3000 m, -7 degrees. On Wednesday, variable visibility, some rain or snow in the morning (snowfall level 1400 m). Longer phases of pleasant weather during the day, with sunshine. Bris to strong W/NW winds, stronger in high alpine regions. Temperature at 2000 m: -1 degree, at 3000 m: -7 degrees.

As a result of new snow on Wednesday and Thursday, the situation will change. On Thursday, heavy rainfall extending far up: to about 2300 m! Thus, rising avalanche danger.