Lower Tauern South

Weak layers in persistent weak layers remain prone to triggering

Weak layers in persistent weak layers remain prone to triggering

The avalanche risk is moderate above around 1800 metres and low below. Slab avalanches can still be triggered by individuals in some places, especially from west to north to east. Avalanches can tear through the persistent weak layer and become medium sized. Some avalanche prone locations are difficult to recognise and require a defensive choice of route. Take particular care near transitions from little to more snow and in the snow-covered entrance areas to steep gullies.

The snowpack is crusted can form and hard in the morning and softens a little on the sunny side during the daytime changes. Bonded snow overlays soft layers on the surface (e.g. surface hoar, faceted crystals) or older, hard packets of drifting snow. In general, areas with little snow alternate with considerable snowdrift accumulations. Breaks occur either in soft layers near the surface or around the crust that forms the transition to the completely angular old snowpack. Below this crust, the old snowpack consists of deep rime and angular forms, which are interspersed with further crusts in areas with more snow. The overall snow depth is well below average.

The night is clear at first, with a few clouds appearing in the morning. On Tuesday morning, there will still be some sunshine in the mountains, then the clouds will thicken and visibility will become increasingly limited. The valleys will be covered in high fog, which will clear during the daytime changes. At 2000 metres the temperature will be -4 to -1 degrees Celsius, at 3000 metres around -9 degrees Celsius. The wind will blow weakly to moderately from the south.

The persistent weak layer problem remains.