Lower Tauern South

Snowdrift problem above the treeline

Snowdrift problem above the treeline

Danger of avalanches above about 1800 m is CONSIDERABLE, below that altitude MODERATE. On very steep slopes below 2200 m, naturally triggered glide-snow avalanches are possible. Above the timberline slab avalanches can trigger. Avalanche prone locations focus on gullies in all aspects and wind-loaded steep slopes, increasingly frequent in NW/E/S aspects. Triggering a small-to-medium sized slab avalanche is possible there even by minimum additional loading. At high altitudes, slab avalanches can in isolated cases grow to large size.

Warmth, rainfall and subsequent nocturnal cooling have helped the snowpack to regain firmness at high altitudes. The moistened snowpack has a melt-freeze crust on the surface. The snowpack is gliding over smooth, grass-covered slopes. Above the timberline there are older drifts deposited in gullies and bowls which are blanketed by maximum 10 cm of new snow. In higher, wind-protected zones the loose snow can become a weak layer for the slightly-bonded new snow which is deposited on top of it. In high alpine regions, particularly on shady slopes above 2200 m, weak, soft layers of faceted crystals are evident in the snowpack fundament.

On Tuesday, visibility will be good, intermittent sunshine is expected. In the afternoon, dense cloud cover will move in over summit level and create diffuse light conditions (although the summits themselves will remain free). Fog will lie above the valleys. At high altitudes, a brisk northerly wind will arise, elsewhere winds will be light. At 2000 m: +1 degree; at 3000 m: -4 degrees. On Wednesday, visibility will initially be limited by clouds and fog. In the afternoon, the visibility will improve and the sun will come out, particularly in the grassy mountains. Winds will not be a disturbance. At 2000 m: 2 degrees; at 3000 m: -4 degrees.

Gradually decreasing avalanche danger at high altitudes