Persistent weak layers
- Above 1,800 m
- Size
- 1
Stability: fair · Frequency: few
Too little snow on the ground for winter sports widespread. Danger zones in gullies and bowls.
Stability: fair · Frequency: few
Too little snow on the ground for winter sports widespread. Danger zones in gullies and bowls.
The snowdrift accumulations on steep shady slopes above 1800m can in isolated cases trigger an avalanche even by minimum additional loading. Particularly unfavorable are gullies and bowls where hardened layers blanket weakly consolidated old snow. These danger zones occur rather seldom, and are generally small-sized. Apart from the risk of being buried in snow masses, you also need to take the dangers of being swept along and forced to take a fall into consideration.
Snowdrift accumulations cover a weak old snowpack surface on shady slopes above 1800m. The old snowpack is weak, with faceted crystals. Solar radiation and higher temperatures led to a gradual softening of the snowpack during the course of the day, particularly on sunny slopes.
On Thursday the weather will change, in the Carnic Alps and Karawanken barrier clouds from the south will rapidly accumulate, shrouding the first summits in fog. Otherwise, Intermittent sunshine in the early part of the day, later on heavy clouds will move in. Moderate to strong SW foehn wind, reaching storm strength in exposed terrain during the afternoon. Temperatures will begin to drop, at midday at 2000m: -4 degrees.
Slightly increasing avalanche danger regionally
Bulletin data: Avalanche Warning Service Carinthia, lawinen.report (CC BY 4.0)