Danger of wet-snow avalanches is heightened even as of early morning in all aspects below 2400m. Naturally triggered avalanches are possible, avalanches can also be triggered by persons and grow to large size, also sweep along great amounts of wet snow in their plummet path and then extend to very long runout zones. In high alpine regions, small ridgeline snowdrift accumulations are still prone to triggering. In addition, winter sports enthusiasts can in places on high-altitude shady slopes trigger near-surface weak layers. Such danger zones are impossible to recognize. Atop the hardened snowpack surface, there is danger of being forced to take a fall on steep slopes.
Snowpack
Following starkly reduced outgoing radiation and mild temperatures, the snowpack is hardly freezing at night. Above 2200m about 5cm of fresh snow is expected, below that altitude as intermittent rainfall. At 1800-2400m the snowpack, even on north-facing slopes, is thoroughly wet and ground-level layers of rotten snow are prone to triggering. In high-altitude, steep and shady terrain, there are unfavorable intermediate layers in the uppermost metre of the snowpack which in places are prone to triggering. A thick mid-section of compact layers blankets the deep hoar and faceted crystals at the base of the snowpack.
Tendency
Slight high-pressure front conditions, increasingly pleasant conditions, milder temperatures. Starkly reduced nocturnal outgoing radiation continues.
Danger level
Avalanche Problem
Wet snow
Wet-snow danger in very steep terrain where there is still lots of snow
Wet loose-snow avalanches can trigger naturally in extremely steep terrain as a result of the rain showers. Also persons can trigger wet-snow avalanches in very steep terrain. Danger zones generally occur only in summit zones of the Bregenzerwald mountains. Avalanches generally remain medium-sized. On steep, smooth-ground slopes with lots of snow which have not yet discharged, glide-snow avalanches can trigger in all aspects.
Snowpack
Due to reduced nocturnal longwave outgoing radiation and ongoing mild temperatures, the snowpack does not freeze at night. At all altitudes the snowpack is thoroughly wet.
Tendency
Slight high-pressure front conditions, increasingly pleasant conditions, milder temperatures. Slopes continue to become bare of snow.
Danger level
Avalanche Problem
Wet snow
Small wet-snow slides possible
Due to rainfall, wet loose-snow avalanches can trigger naturally in extremely steep terrain where there is still snow on the ground. Avalanches will be mostly small-sized.
Snowpack
South-facing slopes are frequently bare of snow. Where there’s a snowpack on the ground, it’s thoroughly wet.
