Persistent weak layers
- Above treeline
- Size
- 2
Stability: very poor · Frequency: many
Remotely triggered and natural avalanches are possible.
Stability: very poor · Frequency: many
Stability: very poor · Frequency: some
During the course of the night as a consequence of new snow and wind there will be an additional increase in the avalanche danger. The snowpack will be prone to triggering over a wide area.
In the afternoon a precarious avalanche situation will prevail. The avalanche danger in the regions exposed to heavier precipitation is within the upper range of danger level 3 (considerable).
Wind slabs are very prone to triggering in all aspects. These can in many cases be released in near-surface layers of the snowpack. Avalanches can also penetrate near-ground layers of the snowpack and reach quite a large size on west, north and east facing slopes. Midday and afternoon: As a consequence of new snow and a moderate to strong wind from variable directions, further wind slabs will form in the course of the day. As the snowfall becomes heavier, the likelihood of avalanches being released will increase significantly. Natural avalanches are possible. The runout zones are to be avoided. The emptied starting zones will be replenished as a consequence of snowfall and wind.
10 to 20 cm of snow, and even more in some localities, will fall from midday. The sometimes strong wind will transport the new snow. Somewhat older wind slabs are lying on surface hoar. Over a wide area further wind slabs will form. The snowpack will become increasingly prone to triggering. Distinct weak layers exist in the old snowpack in particular on west, north and east facing slopes.
Bulletin data: Avalanche Warning Service Carinthia, lawinen.report (CC BY 4.0)