Bollettino valanghe

Bollettino valanghe

LWD Vorarlberg
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Pericolo valanghe

Above 2,200 m
2 · Moderato
Below 2,200 m
1 · Debole
Non aggiornato — questo bollettino è scaduto 5 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Predominantly favorable conditions, older drifts at high altitude still triggerable

Problemi valanghivi

  • Persistent weak layers

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  • Gliding snow

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Avalanche Activity

Predominantly favorable conditions, older drifts at high altitude still triggerable

Avalanche danger above 2200 m is moderate, below that altitude danger is low. Older snowdrift accumulations can be triggered by large additional loading at high altitude. Avalanche prone locations are found particularly on steep ridgeline slopes, in wind-loaded gullies and bowls. A cautious route selection is advised. At intermediate and low altitudes, particularly on sunny slopes, glide-snow avalanches are still possible. Caution urged below glide cracks. Due to daytime warming and solar radiation, mostly small-sized moist loose-snow avalanches can release naturally in steep rocky terrain during the course of the day, or also be triggered by winter sports enthusiasts.

Snowpack Structure

On sunny slopes the snowpack surface is softening to an increasing degree, melt-freeze crusts form during the nocturnal hours. On shady slopes there is still powder. Exposed zones are often utterly windblown or have melt-freeze snow down to the ground; gullies and bowls are filled to the brim with drifts. Weak layers in the old snowpack and near surface-near melt-freeze crusts can still be triggered in places. The old snow beneath them is generally well consolidated and stable.

Weather Synopsis

Little change in the conditions generated by a high-pressure front. The air is dry and mild, zero-degree level is at 2800 m, the skies are cloudless, the sunshine unimpeded. Less wind than in recent days. Temperature at 2000 m: 2-6 degrees. Mostly light winds at high altitude, mostly from northerly directions.

Tendency

Also on Sunday it will be sunny. Westerly winds at high altitudes will intensify during the daytime. Avalanche danger is not expected to change significantly.

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