Bollettino valanghe

Allgäu Alps West

LWD Vorarlberg
Vedi sulla mappa

Pericolo valanghe

Above 1,800 m
2 · Moderato
Below 1,800 m
1 · Debole
Non aggiornato — questo bollettino è scaduto 4 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Still weak layers in the old snow on high-altitude shady slopes

Problemi valanghivi

  • Persistent weak layers

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Avalanche Activity

Still weak layers in the old snow on high-altitude shady slopes

Avalanche prone locations can still be triggered even by minimum additional loading, i.e. the weight of one sole skier, although danger has receded.Danger zones occur mostly in steep shady terrain, small-to-medium slab avalanches can in places be triggered by low additional loading. Cautious route selection is recommended. Due to solar radiation and daytime warming, small loose-snow avalanches are possible on sunny slopes. On sunny steep grassy slopes, glide-snow avalanches are possible.

Snowpack Structure

Temperatures have risen noticeably at high altitude, the proneness to triggering has diminished. In the upper part of the snowpack are expansively metamorphosed (faceted) crystals. On very steep sunny slopes there is a thin melt-freeze crust on the surface. Elsewhere the snowpack is often powdery. At intermediate altitudes there is surface hoar. Due to solar radiation and daytime warming the snowpack softens on sunny slopes.

Weather Synopsis

Nocturnal hours: star-studded skies, cold. Sunday: sunny but cold winds, though not as brisk as yesterday. At 2000 m: -4 to +2 degrees. Light to moderate NE winds.

Tendency

Zero-degree level rising to nearly 3000 m on Monday. Danger of dry-snow avalanches will diminish further. Due to solar radiation and daytime warming, risks of wet-snow and glide-snow avalanches will increase during the course of the day.

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

Regioni coperte