Wind slab
- Above treeline
Prone to triggering wind slab snow in the higher elevations! Beginning of wet snow problems at lower altitudes.
Prone to triggering wind slab snow in the higher elevations! Beginning of wet snow problems at lower altitudes.
The avalanche risk above the tree line is rated as "considerable". Stormy north-westerly winds create fresh drift snow packs in the east and south sectors, which in many places can be triggered by individual winter sports enthusiasts as medium slab avalanches. Spontaneous wet snow avalanches and smaller gliding avalanches can occur at lower altitudes.
Stormy north-westerly winds form fresh wind slabs. The connection between the drift snow packs and the old snowpack is not yet sufficient in places. At shady high altitudes, the old snowpack is unfavourably structured in places with crusts and embedded faceted crystals. With the arrival of rain, the snowpack at lower altitudes loses stability and can also start to glide snow on steep grassy slopes.
On Sunday evening and in the first half of the night there will be only a few showers for a while, but after midnight and in the morning hours rain and snow will become more frequent again and will continue to dominate on Monday morning. In total, up to 10 cm of new fallen snow may fall at higher elevations, most of it in the Ybbstal Alps. The snowfall level will be between 1300 and 1500 metres. The peaks will often remain shrouded in clouds and fog, but the precipitation will largely subside in the afternoon and occasionally the weather will become a little softer. The wind from westerly directions will remain stormy at higher altitudes! The temperature at 2000 metres will be around -2 degrees, at 1500 metres around +1 degree.
The weather will deteriorate again on Tuesday night, with heavy rain and snowfall starting again after midnight at the latest. Above around 1000 metres, a good 10 to 20 cm of new fallen snow is possible by midday on Tuesday. It will remain stormy! The risk of avalanches is increasing!
Bulletin data: Avalanche Warning Service Lower Austria (CC BY 4.0)