Favourable situation
- All elevations
Generally low avalanche danger. Too little snow.
Generally low avalanche danger. Too little snow.
Avalanche danger is predominantly low. Isolated danger zones threaten in extremely steep terrain. In wind-loaded gullies and bowls, small drifts prevail. Small slab avalanches and slides can be triggered even by one sole winter sports enthusiast. The risk of being swept along and forced to take a fall outweighs that of being buried in snow.
The snowpack in early winter is of varying depth. In high alpine terrain of the southern regions, at elevated altitudes of the Lechquellen region and on the Arlberg there is more snow on the ground. The snowpack in exposed terrain shows heavy wind influence. Crests and ridges are often windblown and bare of snow, gullies and bowls frequently filled to the brim with drifts. Below about 1200 m there is only a shallow, not cohesive snowpack. Backcountry skiing tours and activities in outlying terrain apart from groomed and secured ski runs are not yet worthwhile. Further information about the snowpack is not yet available to the Avalanche Warning Service.
Friday night: clouds will begin to disperse in the early part of the night, in the latter part of the night skies will frequently be cloudless. Thus, very good outgoing longwave radiation is possible. Only in the Silvretta will the fogbanks be tenacious, thus hampering outgoing radiation. Starting Saturday morning, clouds will again move in from the south. Decent mountain weather is expected, a few hours of sunshine in the morning hours; then in the afternoon, clouds will move in from the south, gradually sheathing the Silvretta summits in fog. Further north the peaks are expected to remain in the clear, but the light will be diffuse. Winds will intensify, temperatures will drop. At 2000 m: -7 to -1 degree. High altitude winds: southerly, increasingly brisk.
Sunday impact of southern foehn wind: in the massifs north of the Silvretta it will initially be sunny, but cloudy patches can be expected. In the foehn lanes: very windy, downright stormy in places. Rising temperatures at all altitudes. At 2000 m: +2 degrees. High altitude winds: southerly, moderate to strong velocity. In high alpine regions the old snow will be transported. At low and intermediate altitudes, small slides are possible due to the warmth.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)