Stub and Gleinalpe

Fresh snow and freshly generated snowdrift accumulations

Fresh snow and freshly generated snowdrift accumulations

Avalanche danger is considerable above the treeline. Naturally triggered wet avalanches are possible as a result of the fresh snowfall. In backcountry touring terrain the danger zones lie in ridgeline terrain and behind abrupt drops in the terrain. In addition, on steep grassy slopes glide-snow slides can release naturally. Exposed transportation routes can be placed at risk. Fresh cornices are instable.

Since the start of this bout of precipitation there has been 100 cm of fresh snow registered in the mountains, often stormy NW winds transported it, depositing new drifts stop unbonded snow where they are prone to triggering. In addition, bonding is poor, often a trigger-sensitive sequence of crusts and faceted layers. As temperatures rise the snowpack will become moist and heavy, lose its firmness. At intermediate and low altitudes the snow fell on bare ground. Steep grassy slopes are enhanced terrain for gliding snow masses.

Low-pressure front conditions on Sunday, esp. the peaks in the northern massifs will be shrouded in fog. Intermittent snowfall in the morning hours, snowfall level ascending during the day from 800 to 1200 m in north and east, from 1000 to 1500 in the south. Possible bright intervals in Gurktal and Seetal Alps. Winds moderate from the north, gustier at summit level. At 2000 m north of the Main Alpine Ridge: -4 degrees at midday; at 1500 m: 0 degrees. In the south, milder: -1 degree at 2000 m, +3 degrees at 1500 m.

On Monday, increased bright intervals in the south. In the north, mostly gray skies, NW winds will intensify. The snowpack will be able to settle further, diffuse radiation and higher temperatures will lead to increasing wet-snow avalanches.