Bollettino valanghe

Allgäu Alps Central

LWD Bayern
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Pericolo valanghe

Above treeline
3 · Marcato
Below treeline
1 · Debole
Non aggiornato — questo bollettino è scaduto 4 years ago. Stai vedendo condizioni passate, non il bollettino in corso.

In sintesi

Trigger-sensitive snowdrift accumulations on the Main Allgau Ridge

Problemi valanghivi

  • Wind slab

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Avalanche Activity

Trigger-sensitive snowdrift accumulations on the Main Allgau Ridge

Avalanche danger above the treeline is considerable, below that altitude danger is low. Main problem: the freshly generated snowdrift accumulations. Slab avalanches reaching medium size can be triggered even by one sole winter sports enthusiast. Danger zones are numerous and located mostly above the treeline in steep ridgeline terrain on NW/E/S facing slopes, in wind-loaded gullies and bowls and behind abrupt discontinuities in the terrain. Danger zones increase with ascending altitude.

Snowpack Structure

Strong winds and the fresh fallen snow is being transported, deposited atop the older snowdrifts, the snowdrifts are growing in size. Inside the drifts are weak intermediate layers generated in the interims of precipitation and shifting wind velocities: these are prone to triggering. Bonding deteriorates with ascending altitude. In wind-exposed zones and at lower altitudes, the old snowpack is shallow and melt-freeze encrusted.

Tendency

Little change amid continuing strong-velocity winds

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

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