2021-04-17T16:00:00+00:00 avalanche-warnings.eu 2021-04-17T22:00:00+00:00 2021-04-18T22:00:00+00:00 2 1 drifting snow older small snowdrift masses wet snow diffuse radiation Moderate avalanche danger at high altitude At high altidue, there are still avalanche prone locations in the form of snowdrift accumulations. They are found in ridgeline terrain, in gullies and bowls in N-SE aspects, where slab avalanches can be triggered by large (in isolated cases by minimum) additional loading. In steep rocky terrain, naturally triggered releases are possible. In addition, on steep grass-covered slopes, glide-snow slides can trigger. The amounts of fresh snow from the beginning of the week have been able to settle, bonding is generally good. Frequencly, windblowin zones alternate with wind-loaded zones over smallest spaces. Isolated older snowddrift accumulations have been deposited atop a compact old snowpack surface. Weak layers (loose embedded snow) occur primarily inside the latest layer of fresh snow, in isolated cases in transitions to the old snowpack. Overnight, a crust of varying thickness forms, or else surface hoar. The snow is becoming heavier, it is still loose only in isolated cases. In spite of cloud cover, the powerful diffuse radiation is reinforcing the settling of the snowpack. At lower altitudes the recent layer is being further moistened. A lubricating layer at ground level enhances gliding snow. The current weather front will continue to determine conditions in Styria on Sunday, though the effects of the low will be more pronounced. It will remain overcast and gray, the peaks will be covered in fog, with only short exceptional bright intervals. Intermittent minor rainfall or snowfall, the snowfall level will fluctuate between 1000 and 1300m. Light to moderate N/NW winds. Temperature at 2000 m: -6 degrees; at 1500 m, -2 degrees. On Monday the gray weather will continute. In the morning, heavier snow is possible. No significant change in avalanche danger is expected. 2021-04-17T16:00:00+00:00 avalanche-warnings.eu 2021-04-17T22:00:00+00:00 2021-04-18T22:00:00+00:00 1 drifting snow older ridgeline snowdrift patches Low avalanche danger At high altitudes there are still isolated avalanche prone locations in the form of older snowdrift patches. These are found in ridgeline terrain, in gullies and bowls in N-E aspects, where small slab avalanches can be triggered by large additional loading. On steep rocky slopes, naturally triggered avalanches are possible. The amounts of fresh snow from the last few days have been able to settle. Frequencly, windblowin zones alternate with wind-loaded zones over smallest spaces. Weak layers (loose embedded snow) occur primarily inside the latest layer of fresh snow, in isolated cases in transitions to the old snowpack. Overnight, a crust of varying thickness forms, or else surface hoar. The snow is becoming heavier, it is still loose only in isolated cases. In spite of cloud cover, the powerful diffuse radiation is reinforcing the settling of the snowpack. At lower altitudes the recent layer is being further moistened. The current weather front will continue to determine conditions in Styria on Sunday, though the effects of the low will be more pronounced. It will remain overcast and gray, the peaks will be covered in fog, with only short exceptional bright intervals. Intermittent minor rainfall or snowfall, the snowfall level will fluctuate between 1000 and 1300m. Light to moderate N/NW winds. Temperature at 2000 m: -6 degrees; at 1500 m, -2 degrees. On Monday the gray weather will continute. In the morning, heavier snow is possible. No significant change in avalanche danger is expected to start with.