Bollettino valanghe

Lechquellen Mountains

LWD Vorarlberg
Vedi sulla mappa

Pericolo valanghe

Above 2,400 m
3 · Marcato
Below 2,400 m
2 · Moderato
Non aggiornato — questo bollettino è scaduto 4 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Main danger: snowdrifts and persistent weak layer

Problemi valanghivi

  • Wind slab

    • Tutte le quote
  • Persistent weak layers

    • Tutte le quote

Avalanche Activity

Main danger: snowdrifts and persistent weak layer

The latest snowdrifts in wind-impacted steep terrain, in wind-loaded gullies and bowls and behind abrupt discontinuities in the terrain are often still prone to triggering. Danger zones increase in size and spread with ascending altitude. Small-to-medium sized slab avalanches can trigger even from one sole skier. In addition, on steep, less-tracked shady slopes in high alpine regions or in transitions from shallow to deep snow, deeply embedded layers inside the snowpack are triggerable by large additional loading. Activities in backcountry demand experience in avalanche danger assessment on-site. In steep rocky terrain the fresh snow can trigger small to medium loose-snow and slab avalanches.

Snowpack Structure

Slightly higher temperatures and less wind will help the snowpack to settle and consolidate. In ridgeline and pass areas, behind abrupt discontinuities in the terrain and in wind-impacted terrain, older snowdrifts occur, often poorly bonded with the old snowpack surface or riddled with weak intermediate layers. In leeward terrain and at low altitudes the fresh snow is still loose, despite partial settling. At high altitudes, especially on shady slopes, there are weak layers inside the snowpack. These danger zones are not visible to the naked eye.

Weather Synopsis

Nocturnal hours: only slightly cloudy skies, high fogbanks will have a ceiling at 1000 m at the western and northern rim of Bregenzerwald Massif and Prealps. Wednesday: tenacious fog at intermediate altitudes, above that is sunshine and higher temperatures, only a few high-altitude clouds. At 2000 m: -6 to -1 degree. Moderate E/NE winds.

Tendency

Low lying cloud in the northern regions. In Silvretta and Rätikon, as well as above 2000 m in general: sunshine. Temperatures will drop a notch. Avalanche danger will diminish.

Bulletin data: Avalanche Warning Service Vorarlberg (CC BY 4.0)

Regioni coperte