Persistent weak layers
- All elevations
Isolated slab avalanches can be triggered in the old snow.
Isolated slab avalanches can be triggered in the old snow.
Avalanche danger is low. Weak layers in the old snow can constitute a spatially limited problem. Isolated avalanche prone locations are found on extremely steep slopes in W/N/E aspects and at transitions from deep to shallow snow, e.g. at the entry points into gullies. There, small to medium-sized slab avalanches can still be triggered by large additional loading. Isolated glide snow avalanches are possible on smooth steep grass-covered slopes. In the Allgäu region they can even grow to medium size. Glide cracks are alarm signals.
On shady high altitude slopes, locally faceted crystals have persisted in the old snowpack close to crusts. However, they now only trigger rarely. Elsewhere the snowpack is mostly stable. On shady slopes, well settled loose frozen powder prevails; in exposed high altitude terrain wind crusts. In south aspects a melt-freeze crust forms during the night which is capable of bearing loads and which only softens again around midday due to solar radiation. Below 2000m the snowpack base is partly moist. Locally, gliding movements over smooth ground can be observed.
In the next few days the avalanche danger will remain low.
Bulletin data: Avalanche Warning Service Bavaria (CC BY 4.0)