Persistent weak layers
- Above 1,900 m
Weak layers in persistent weak layers remain prone to triggering
The snow cover is prone to triggering in places in higher, steeper areas in the transition to the old snowpack due to soft layers such as snow-covered surface hoar. There is significantly more snow in shady gullies and bowls than on sunny slopes. In the northern and eastern exposures, the old snowpack continues to be weakened by crusts and layers with faceted crystals and floating snow; the persistent weak layer problem remains. There is still significantly less snow than average.
Weak layers in persistent weak layers remain prone to triggering
The avalanche risk is moderate above around 1800 metres and low below. There is still a persistent weak layer problem. The avalanche prone locations are limited but still difficult to recognise. These are mainly located on north to east-facing slopes above 1900 metres. Here, slab avalanches can still be triggered by individuals in some places. Medium-sized avalanches are possible when breaking through the weak old snowpack. Small loose snow slides are possible at medium altitudes.
While the night will be starry on the northern side of the Alps, many lowlands south of the main Alpine ridge will continue to be covered in thick patches of high fog, some of which will reach up to 1700 metres. It may snow lightly from time to time, but nothing more than a wafer-thin layer of fresh snow is possible. Tuesday morning will also be cloudy on the southern side of the Alps, with high fog reaching up to 1500 to 1800 metres and many peaks covered in fog. As the day progresses, the upper limit of the fog will fall and some peaks will get a few hours of sunshine in the afternoon. Tuesday will start very sunny on the northern side of the Alps, but a few denser cloud fields will appear from the west during the daytime changes. Temperatures at 2000 metres will be between -4 and -1 degrees, at 1500 metres between -1 and 3 degrees. Winds will be weak, sometimes moderately strong from the south in the north.
Towards the middle of the week, clouds from a warm front will replace the sunshine and bring local rain or snow showers with a snowfall level of around 1500 metres. No significant change in the avalanche risk.
Bulletin data: Avalanche Warning Service Styria (CC BY 4.0)