Boletín de aludes

Hochschwab Mountains

LWD Steiermark
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Peligro de aludes

Above treeline
2 · Moderado
Below treeline
1 · Débil
Desactualizado: este boletín caducó 4 years ago. Estás viendo condiciones pasadas, no el boletín vigente.

Lo esencial

Wind-loaded north-facing slopes

Problemas de aludes

  • Wind slab

    • Todas las altitudes
  • Persistent weak layers

    • Todas las altitudes

Avalanche Activity

Wind-loaded north-facing slopes

Avalanche danger above the treeline is moderate. Danger zones are located in ridgeline terrain and behind abrupt discontinuities in the terrain. Particular caution is urged on high altitude north-facing slopes. Fresh snowdrifts have been deposited on top of an unfavourable old snowpack surface (persistent weak layer). The drifts should not be underestimated at high altitudes! A slab release is possible even with minimum additional loading. As the wind changes direction from south to northwest, also east-facing slopes will be filled with snowdrift accumulations. Caution urged towards fresh cornices, they are easily triggered.

Snowpack Structure

There was 5-10 cm of fresh snow has blanketed the surface hoar and the weak layers of the old snowpack surface. In the fundament there is a loose, weak layer. Analysis has confirmed a sequence of melt-freeze crusts and faceted crystal layers. On sunny slopes the snowpack is hardened and icy. All in all, extremely unfavourable snowpack layering.

Weather Synopsis

On Tuesday night a bit of rainfall/snowfall is anticipated, in the Niedere Tauern and Hochschwab regions a few centimetres of fresh snow is expected. Dachstein and Totes Gebirge will remain without fresh snow. The snowfall level lies at valley floor. Wednesday: the snowfall will taper off in the morning. In the afternoon clouds will disperse and some sunshine is expected. Westerly winds will reach speeds of 30-50 km/hr. At 2000 m: -8 degrees.

Tendency

It will remain cold, avalanche danger levels are not expected to change.

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

Regiones cubiertas