Wölz Tauern South

Weak persistent layer is a persistent weak layer

Weak persistent layer is a persistent weak layer

The avalanche risk is moderate above 1800 metres and low below. There is still a persistent weak layer problem in the extended northern sector. Medium-sized slab avalanches can still be triggered by people in steep gullies and bowls. The avalanche prone locations are usually difficult to recognise and are often located in transition areas from little to much snow. The probability of triggering wet snow avalanches increases slightly during the daytime changes from very steep east- to south- to west-facing slopes. In steep terrain, there is a risk of falling on the hard snow surface.

Outgoing longwave radiation is somewhat reduced from the second half of the night. As a result, the snow surface can often only consolidate weakly and soften increasingly on the sunny slopes depending on the incoming radiation. On shady slopes, there are still areas with a soft (faceted) snow surface at higher altitudes, where the firmness of the layer changes depending on the altitude and exposure. Below this there is an increasingly sufficiently settled and compact snowpack, the transition to the foundation consisting of deep rime (floating snow) is still poor. Medium (sunny slopes) and low altitudes are largely free of snow.

After a few showers have subsided, Thursday night will be largely dry. It will be only slightly cloudy to the south, but the next clouds will move in after midnight in the north-west with a weak low-pressure influence. Thursday will start mainly cloudy in the north-west, with a few rain or snow showers in the morning. From midday, partly thundery showers with graupel will also be possible in the rest of the mountains, and the sun will generally make itself scarce. The frost line will briefly drop to around 1500 metres in the north, but no significant amounts of precipitation or new snow are expected. The temperature at 2000 m will be between -3 and +1 degrees, at 1500 m between 0 and +4 degrees. The wind will be moderate from northerly and westerly directions.

Quite sunny and dry on Friday and Saturday. With a wind shift to the south-west, it will be partly foehn. Little change in avalanche danger.