Weisseck, Muhr Valley

Persistent weak layer demands restraint in terrain selection

Persistent weak layer demands restraint in terrain selection

Avalanche danger above 2000m is considerable, below that altitude danger is moderate. Avalanches can in some places be triggered even by one sole skier. Above 2000m avalanches can fracture down to more deeply embedded layers in the snowpack, particularly on steep north-facing slopes. Also naturally triggered avalanches and remote triggerings are possible. Whumpf noises and cracks when you tread upon the snowpack, as well as fresh avalanche releases, are alarm signals and indicate imminent danger. Naturally triggered glide-snow and loose-snow avalanches are possible, mostly small sized releases. Small-to-medium naturally triggered glide-snow avalanches are possible.

Inside the old snowpack on very steep north-facing slopes above the trereline there are weak layers of faceted crystals. On the one hand, the snow was able to metamorphose esp. where snow is shallow; on the other, below the near-surface melt-freeze crust there are also faceted crystals. Below 1900m the old snowpack is moist due to the rain impact. On very steep grassy slopes the entire snowpac can begin to glide away.

In Tauern and Lungau Nockberge am Friday, initially dispersed clouds, partly sunny. During the daytime clouds will become dense, but precipitation is unlikely. A moderate W/NW wind will be blowing. At 2000m: between -6 and -3 degrees; at 3000m: betwen -12 and -8 degrees.

Likelihood of weak layers in old snow triggering will gradually decrease