Bulletin d’avalanche

Fischbach Alps East, Wechsel

LWD Steiermark
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Danger d’avalanche

Above treeline
2 · Modéré
Below treeline
1 · Faible
Périmé — ce bulletin a expiré 4 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

Southerly winds - snowdrift accumulations on north-facing slopes

Problèmes avalancheux

  • Wind slab

    • Toutes altitudes

Avalanche Activity

Southerly winds - snowdrift accumulations on north-facing slopes

Avalancahe danger above the treeline is moderate. Avalanche prone locations occur on NW/N/NE facing slopes more than anywhere else. Fresh snowdrift accumulations have been generated, can be triggered even by the weight of one single person. Special caution is urged at entry points into gullies and bowls (shallow to deep snow).

Snowpack Structure

The huge amounts of snowdrifted masses from the last few days have been able to settle. More deeply embedded inside the snowpack are layers of faceted crystals and melt-freeze crusts which weaken the entire snowpack. On steep south-facing slopes a melt-freeze crust has formed. On Wednesday afternoon, SW winds will transport the snow to north-facing slopes. The drifts are deposited atop a layer with surface har. On Thursday, southerly winds will generate further snowdrift accumulations. Bonding between fresh drifts and the old snowpack is insufficient.

Weather Synopsis

On Thursday, widespread sunshine in the Styrian Alps. Widns will be strong in the morning, lighter in the afternoon. Temperatures will rise, visibility in the dry air will be outstanding. At 2000 m: from -9 degrees on the Koralpe to -6 degrees in the Totes Gebirge.

Tendency

No significant change in avalanche danger levels is expected.

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

Régions couvertes