Wind slab
- Above treeline
Beware of fresh wind slab!
Beware of fresh wind slab!
The avalanche risk is moderate above the tree line. Fresh snowdrift accumulations can be triggered as small to medium-sized avalanches by individual winter sports enthusiasts in all aspects. The avalanche prone locations are mainly in gullies, bowls and behind terrain edges. Very occasionally, avalanches can also tear through layers close to the ground.
5 to 10 cm of new fallen snow has fallen in the last 24 hours. This was transported by the strong to stormy north-westerly wind. Fresh snowdrift accumulations were often deposited on a sufficiently stable old snowpack above the tree line. Weak layers can be found in the bound layer or transition to the old snow, at higher altitudes in places still in the persistent weak layer (faceted crystals in the area of crusts) or occasionally in layers close to the ground in the form of floating snow.
A strong northerly current determines the weather. Visibility is poor. The temperature at an altitude of 2000 metres is between -10 and -7 degrees. The temperature at an altitude of 1500 metres is around -5 degrees. There is a heavy gale, hurricane with gusts of 140 km/h from the north. The snowfall level is between the valleys and around 600 metres above sea level. Amounts of new snow of up to 10 cm are expected.
The wind slab problem remains.
Bulletin data: Avalanche Warning Service Styria (CC BY 4.0)