Persistent weak layers
- All elevations
Predominantly low danger, slight daytime rise due to rainfall/fresh snow
Nocturnal skies will be overcast, rainy. Some fresh snow can be expected at high altitudes also during the daytime on Thursday. Avalanche danger will increase slightly and the type of danger change.
Predominantly low danger, slight daytime rise due to rainfall/fresh snow
Predominantly “low” avalanche danger prevails. Isolated danger zones for dry-snow avalanches occur still in extremely steep, mostly shady terrain in high alpine regions. Apart from the risks of being buried in snow, the dangers of being swept along and forced to take a fall also require attentiveness. Wind and light snowfall in high alpine regions will generate fresh small snowdrift accumulations. The danger of glide-snow and wet-snow avalanches will increase somewhat due to rain; small superficial wet-snow avalanches are possible. Glide-snow avalanches continue to be possible, but are nearly impossible to predict. Zones below glide cracks in the surface should be avoided.
Following a night of partially clear skies (overcast in the latter part of the night, with lower temperatures) the snowpack is well consolidated and stable. A crust capable of bearing loads formed. Below the crust, however, the snowpack is thoroughly wet and even the base is often wet up to high altitudes. On very steep smooth slopes this furthers the gliding movement of the entire snowpack. During the day the snowpack softens in areas where there is rainfall, losing firmness.
Many peaks shrouded in clouds/fog since early morning. Rainfall or snowfall will soon set in, and slightly increase in frequency over the day. The snowfall level lies at 1600 m. At 2000 m: -1 degree. Light to moderate westerly winds.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)