Kreuzeck Group

Isolated danger zones at high altitudes

Isolated danger zones at high altitudes

Early until late morning: following a night of clear skies, favorable conditions widespread. Acute danger of falls on the hardened snowpack surface. Daytime hours: due to rising temperatures and solar radiation, likelihood of wet loose-snow avalanches will increase significantly esp. along the Italian border. Isolated naturally triggered avalanches are possible due to the thoroughly wet snowpack. Wet-snow avalanches can often fracture down to ground level. Wet-snow avalanches can reach medium size, esp. on extremely steep sunny slopes in high altitude starting zones. The runout zones should be avoided. Weak layers in the old snow above 2300m can trigger in isolated cases, esp. by large additional loading. These danger zones occur on steep slopes on W/N/E-facing slopes. Dry-snow avalanches can in isolated cases reach medium size.

Nocturnal outgoing longwave radiation will be quite good. The snowpack surface will freeze and be capable of bearing loads in early morning, softening subsequently over the course of the day. The lowermost layers of the snowpack are moist, particularly on sunny slopes at all altitudes and on shady slopes below 2200m. Inside the old snowpack on N/W/E-facing slopes there are faceted, expansively metamorphosed weak layers, esp. abov 2400m. Below 1800m there is hardly any snow on the ground.

On Saturday predominantly sunny weather, good visibility, mild. Only harmless convective clouds. Later on, clouds from the southwest will become denser around the peaks. Winds will initially be light from the west, later blow at moderate strength from the southwest. At 2000m: +6 degrees; at 3000m: -1 degree. Source: GeoSource Austria

Little change expected