Bollettino valanghe

Wet-snow + glide-snow avalanches at low altitudes due to warmth and rain, favourable conditions at high altitude

Wet-snow + glide-snow avalanches at low altitudes due to warmth and rain, favourable conditions at high altitude

Particularly in regions where snowfall has been heaviest, small-to-medium glide-snow avalanches are possible on steep grass-covered slopes and hillsides which have not yet discharged. Cracks in the snowpack are danger signals. On very steep high-altitude shady slopes and in extremely steep terrain, small-to-medium slab avalanches can trigger by large additional loading in transitions from shallow to deep snow, e.g. at entries into gullies and bowls or in spots where snow is shallow. Particularly in high-altitude ridgeline terrain, caution urged towards fresh, small drifts.

At low and intermediate altitudes the snowpack has been weakened by mild temperatures and some rain influence. At higher altitudes the snowpack is generally well consolidated. With ascending altitude, freshly generated snowdrifts increase. On very steep shady slopes, trigger-sensitive snowdrifts, and isolated weak layers are still found at mid-level in the snowpack. On high altitude shady slopes the uppermost layers are often still loose and powdery or blanketed by surface hoar. Elsewhere there are melt-freeze crusts and wind crusts.

In the northern regions many summit are shrouded in fog, intermittent snowfall is expected. The snowfall level lies at 1300-1500 m. Further south conditions will be drier, visibility quite adequate. Temperature at 2000 m: about -2 degrees. Moderate westerly winds at high altitude.

During the night the clouds will gradually disperse. Monday will be predominantly sunny and foehn wind will be blowing. Avalanche danger is not expected to change significantly.