Gliding snow
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Mostly low danger. Caution: encrusted icy steep terrain and below glide cracks.
Mostly low danger. Caution: encrusted icy steep terrain and below glide cracks.
With increasing altitude, and mostly in extremely steep shady terrain small avalanches can be triggered in near-surface layers. The risks of falling need consideration, esp. on hard, icy steep slopes. A cautious route selection is advised. Danger of glide-snow avalanches, although their activity has receded: on steep smooth slopes in all aspects below 2200 m, small-to-medium releases are possible, difficult to assess, possible at any time of day. Circumvent glide cracks.
The snowpack is well consolidated and stable by and large. The melt-freeze crust is capable of bearing loads up to high altitudes. Many surfaces are wind-impacted or icy from the rainfall. Crests and ridges are utterly windblown, gullies and bowls and zones behind protruberances are filled with older hardened snowdrifts. At intermediate altitudes the snowpack is often moist down to the ground. The weight-load of the fresh snow reinforces the process of gliding over smooth ground, although its activity has receded. In the Prealps, very little snow on the ground.
Nocturnal hours: Dry. Mostly clear skies with a few cirrus clouds. Sunday daytime: Disperse clouds to start with, getting cloudier as the day progresses, with diffuse light conditions, the peaks becoming veiled in fog. At 2000 m: 0 degrees, dropping to -5 degrees. Brisk S/W winds.
New Year’s Eve will bring some fresh snowfall. On Monday the clouds will disperse somewhat. Temperatures will drop. The danger of dry-snow avalanches could increase slightly due to snowdrifts. Danger of small glide-snow avalanches persists.
Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)