Bollettino valanghe

Lechquellen Mountains

LWD Vorarlberg
Vedi sulla mappa

Pericolo valanghe

Above 2,200 m
2 · Moderato
Below 2,200 m
1 · Debole
Non aggiornato — questo bollettino è scaduto 3 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Caution: fresh and older snowdrift accumulations at high altitudes

Problemi valanghivi

  • Wind slab

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  • Persistent weak layers

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Tendency

Saturday will bring April weather: showers over the daytime hours, snowfall from 1000-1500m. Winds will be light. Avalanche danger levels are not expected to change significantly.

Avalanche Activity

Caution: fresh and older snowdrift accumulations at high altitudes

Danger zones increase in size and frequency with ascending altitude. One sole person can trigger mostly small avalanches in steep ridgeline terrain, in wind-loaded gullies and bowls. Superficially triggered avalanches can sweep away the thoroughly wet old snowpack and grow to larger size.

Snowpack Structure

The snowpack is well consolidated in the morning, softens only slowly. Fresh and older snowdrifts increase in size and frequency with ascending altitude. Inside the fresh snow and drifts of recent days are weak layers. Bonding deteriorates with ascending altitude. The fundament is moist up to high altitudes, the snowpack can glide over the smooth ground. As temperatures drop the danger of wet-snow avalanches recedes. A melt-freeze crust has formed beneath the fresh snow. Not much snow below 1500m.

Weather Synopsis

Nocturnal hours: clouds will become dense in the evening, light snowfall/rainfall can be expected as of midnight (snow above 1000 m). Friday: adequate visibility and a few windows of sunshine until after midday, then clouds will move in, the peaks will become shrouded in fog, snow showers will become more frequent. Only minor amounts. At 2000 m: -8 to -4 degrees. Light winds from varying directions.

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

Regioni coperte