Wölz Tauern South

Persistent weak layer problem in shady high altitudes!

Persistent weak layer problem in shady high altitudes!

The avalanche risk is subject to daytime changes. Conditions are still favourable in the morning. As the weather warms up and the sun shines, the avalanche risk increases considerably. Wet loose snow avalanches can still occur spontaneously in isolated cases. In addition, the triggering of wet slab avalanches is possible in some places, which can reach medium size. Triggering of dry slab avalanches is possible in very steep gullies and bowls on the shady slopes with low additional load. The avalanches can tear through to the ground in the northern sector. Occasional gliding avalanches can still slide from grass mats.

During the night, the firmness of the snow cover surface increases briefly. Due to the mild temperatures and solar radiation, the snowpack quickly loses firmness. On the northern slopes, the kinetic metamorphism (cup crystals in the snow layer close to the ground!) continues to weaken the snowpack.

The night to Saturday will be clear and windless. Patches of fog and high fog spread over the lowlands again. Saturday will also bring bright sunny skiing and leisure weather in the Styrian mountains. The sky will be mostly cloudless, the air dry and visibility excellent. However, fog banks may persist on the slopes at first and there will be a rather thick layer of high fog over the foothills, reaching up to an altitude of 900 metres. The wind is weak, moderate on the eastern edge of the Alps from southerly directions. The temperature at an altitude of 2000 metres is between 5 and 8 degrees. The temperature at an altitude of 1500 metres is between 6 and 10 degrees.

A weakly weather-effective disturbance zone will touch the Styrian mountains on Sunday. The passage will be largely dry, with only some regional snowfall above 1600 metres and rain below. From Monday, high pressure will prevail again with mostly sunny conditions. A slight decrease in the risk of avalanches is expected.