Wind slab
- All elevations
Fresh snowdrifts are prone to triggering at high altitudes
Fresh snowdrifts are prone to triggering at high altitudes
Fresh snow and freshly generated snowdrift accumulations are prone to triggering. Exposed ridges and crests are often windblown and bare of snow. Esp. intermediate altitudes evidence surface hoar. One person can trigger small-to-medium avalanches in gullies and bowls and behind abrupt discontinuities in the terrain. In extremely steep and rocky terrain, small to medium sized loose-snow avalanches are possible.
The latest batch of fresh snow was able to settle and consolidate at low altitudes. It often blankets trigger-sensitive snowdrift accumulations. Bonding of fresh snow and drifts to the old snowpack and with itself is often poor. Small to medium naturally triggered releases and danger signals confirm how prone to triggering the snowpack is.
Nocturnal hours: light snowfall down to low lying areas from heavy cloud cover, in the latter part of the night the snowfall will taper off, clouds will disperse. In the Rhine Valley and on Lake Constance the fog will recede. Monday: sunny and adequate visibility. In the afternoon, clouds will move in from the northeast, a few snow showers will result. Temperatures will drop. At 2000 m: -10 degrees. Moderate N/NE winds.
Tuesday will be very sunny. At 2000 m: -7 degrees. Moderate E/NE winds. Avalanche danger will diminish.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)