Bollettino valanghe

Weisseck, Muhr Valley

LWD Salzburg
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Pericolo valanghe

All elevations
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Non aggiornato — questo bollettino è scaduto 4 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Very few avalanche prone locations

Problemi valanghivi

  • Wind slab

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Avalanche Activity

Very few avalanche prone locations

Avalanche danger is LOW. As a result of strong-to-stormy westerly winds, small trigger-sensitive snowdrift accumulations have been generated above 2200 m in gullies and bowls. Caution is urged particularly in terrain where it is possible to take a fall. Weak layers in the old snow can be triggered in isolated cases, i.e. superficially release a freshly formed slab which then fractures down to a more deeply embedded layer. This applies particularly to wind-protected zones, areas at the foot of rock walls, and wind-protected bowls in northern aspects (NE-N-NW) above 2500 m. Avalanches which release rarely attain medium size.

Snowpack Structure

The snowpack at high altitudes shows pronounced effects of wind. Melt-freeze crusts and loose snow alternate over the smallest of spaces. Between shallow snowdrifts and melt-freeze crusts (on sunny slopes) there are soft layers embedded which tend to fracture only seldom. In addition, the required slab atop of it is usually lacking. Larger cohesive snowpack surfaces are limited to leeward bowls. Above 2500 m the layering is unfavourable due to a weak fundament with soft, faceted crystals and depth hoar. This applies particularly to wind-protected terrain. Snow depths are below average. Below 1800 m there is hardly any snow on the ground.

Weather Synopsis

On Saturday, frequent sunshine in the mountains, and good visibility. In high altitude Tauern terrain a brisk SW wind will be blowing. It will be relatively mild: at 2000 m, +5 degrees; at 3000 m: -1 degree.

Tendency

No significant change. Temperatures will recede somewhat on Sunday.

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

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