Wet snow
- Toutes altitudes
Still trigger-sensitive drifts on shady high-altitude slopes. Wet-snow, glide-snow avalanches at low altitudes.
Still trigger-sensitive drifts on shady high-altitude slopes. Wet-snow, glide-snow avalanches at low altitudes.
Above the treeline avalanche danger is moderate due to older snowdrift accumulations. Danger zones primarikly on N/E facing slopes behind protruberances and at entries into gullies, bowls where slab avalanches can trigger even from 1 person. At intermediate and low altitudes the higher temperatures and rain impact has caused the snowpack to forfeit its firmness, likelihood of glide-snow and wet-snow avalanches is higher. Danger zones are steep grassy slopes and steep hillsides.
The stormy winds have created windblown slopes on the southern flank of the Tauern and in the rimline ranges. Clear, windless skies on Thursday night, thereby generating surface hoar which deteriorated on Friday. On sunny slopes and in general on low-altitude shady slopes the snow is moist. Older snowdrift zones occur primarily on N/E/SE facing slopes above the treeline. Soft layers can make the snow prone to triggering.
On Friday night a warm front will move in from the west. Tenacious fog will persist in the valleys until afternoon, high-altitude clouds will dominate higher up (light snowfall). Clouds will then disperse, in southern regions skies will be cloudless, then in the evening new cloud cover will move in. The S/SE winds (at high altitudes W/SW) will be mostly light. Temperatures at 2000 m at midday: -4 degrees; at 1500 m: -1 degree. A stormy NW air current will bring a marked perturbance to the Eastern Alps on Sunday: gray skies from the start, snowfall above 1200 m, stormy NW winds. As of midday, clouds will disperse and some sunshine is expected. Temperatures will remain unchanged.
Avalanche danger levels are not expected to change significantly.
Bulletin data: Avalanche Warning Service Styria (CC BY 4.0)