Weisseck, Muhr Valley

Wind impact above the timberline

Wind impact above the timberline

Avalanche danger above 1600 m is considerable, below that altitude danger is moderate. In danger zones fresh drifts on N/W facing slopes can be triggered even by 1 person in steep terrain, and reach medium size. In heavily wind-loaded zones, isolated naturally triggered avalanches are possible, in high alpine zones reaching medium size. Sones with fresh drifts steeper than 30° should be avoided. Slab avalanches are possible above 1800 m on isolated very steep sunny slopes and in wind-protected terrain due to settling caused by rising temperatures. Naturally triggered loose-snow avalanches are possible on extremely steep slopes due to solar radiation. Danger of naturally triggered glide-snow avalanches persists. Where snow is deep enough, they can reach medium size. Avoid zones below glide cracks.

The recent snowfall from the weekend (30-45 cm) lies deposited atop loose old snow on shady slopes, the bonding unfavorable, and has been lavishly transported by SE winds. Large crystals and surface hoar have formed a weak layer, the drifts constitute the slab. Surface hoar formed during Monday night, the SE winds can blanket it. On shady high-alpine slopes there are faceted layers attached to buried crusts, triggerable by large additional loading. The old snowpack is largely stable but the weight of fresh snow reinforces the tendency of the entire snowpack to glide downhill over the warm ground.

On Wednesday, good visibility and frequent sunshine, barely disturbed by cloud and fog. The SE winds will slacken off. At 2000 m: -4 degrees.

Avalanche danger levels are not expected to change significantly.