Persistent weak layers
- Above 2,200 m
- Size
- 2
Stability: poor · Frequency: few
Weakly bonded old snow requires caution.
Stability: poor · Frequency: few
Stability: poor · Frequency: few
Weakly bonded old snow requires caution.
Weak layers in the old snowpack can be released by individual winter sport participants in particular in little used terrain. Individual avalanche prone locations are to be found in particular on very steep northwest, north and northeast facing slopes above approximately 2200 m. Caution is to be exercised in particular in areas where the snow cover is rather shallow, as well as at transitions from a shallow to a deep snowpack, when entering gullies and bowls for example. Mostly the avalanches are medium-sized. The avalanche situation is more favourable in highly frequented off-piste terrain. As a consequence of a moderate to strong wind from southwesterly directions, rather small wind slabs will form in the course of the day.
The sometimes strong wind will transport the snow. The mostly small wind slabs are lying on soft layers in particular on near-ridge shady slopes. Isolated avalanche prone weak layers exist in the bottom section of the old snowpack in particular on northwest, north and northeast facing slopes. As a consequence of mild temperatures and solar radiation a crust formed on the surface during the last few days, especially on steep sunny slopes. The old snowpack will be moist at low and intermediate altitudes. This applies in particular on south facing slopes.
Gradual decrease in avalanche danger.
Bulletin data: Avalanche Warning Service Tirol, avalanche.report (CC BY 4.0)