Persistent weak layers
- Above treeline
- Größe
- 2
Stability: poor · Frequency: some
Wind slabs and weakly bonded old snow require caution.
Stability: poor · Frequency: some
Stability: poor · Frequency: few
Wind slabs and weakly bonded old snow require caution.
Distinct weak layers in the old snowpack can be released easily by individual winter sport participants especially in little used terrain. Remotely triggered avalanches are possible. Steep, little used shady slopes are to be avoided as far as possible. Mostly avalanches are medium-sized. Caution is to be exercised in particular on steep west, north and east facing slopes above the tree line. The avalanche prone locations are difficult to recognise. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack and fresh avalanches serve as an alarm indicating the danger. The rather small wind slabs of the last few days are in some cases still prone to triggering at elevated altitudes, in particular in gullies and bowls, and behind abrupt changes in the terrain above the tree line. They are easy for the trained eye to recognise. The current avalanche situation calls for meticulous route selection.
The snowpack will be prone to triggering. Wind slabs are lying on surface hoar in some places. Faceted weak layers exist in the bottom section of the old snowpack. This applies in particular on west, north and east facing slopes above the tree line.
Increase in avalanche danger as a consequence of the new snow. The weather report and anticipated change in the avalanche danger are uncertain.
Bulletin data: Avalanche Warning Service Carinthia, lawinen.report (CC BY 4.0)