Gliding snow
- All elevations
Snowdrifts and gliding snow: considerable avalanche danger at high altitudes
Snowdrifts and gliding snow: considerable avalanche danger at high altitudes
Avalanche danger is considerable due to naturally triggered glide-snow avalanches and, above 2000 m, iinstable snowdrifts. In isolated cases at high altitudes, slab avalanches can be triggered by large additional loading. Danger zones occur esp. at entries into extremely steep wind-loaded gullies and bowls in all aspects. Also in all aspects on steep grass-covered slopes and in forest clearances, naturally triggered glide-snow avalanches can be expected which could endanger exposed transportation routes and in isolated cases grow to large size. Glide cracks are indicators of potential danger, zones below them should be avoided.
The fresh snow and drifts of the last few days have settled well and are bonded with the old snowpack. The snow cover is nearly isotherm up to high altitudes and often wet at ground level. Over smooth ground the entire snowpack is gliding downhill.
On Christmas Day weather conditions will improve noticeably in Styria, it will be intermittently sunny, though the W/NW winds in eastern regions will still be stormy. Further west and south, only moderate westerly winds. At 2000 m: +3 to +5 degrees.
Boxing Day will bring mild weather and strong westerly winds on the eastern rim of the Alps. The danger of slab avalanches will continue to recede, the gliding snow problem will persist. The entire team at the Avalanche Warning Service of Styria wishes one and all Merry Christmas and happy holidays.
Bulletin data: Avalanche Warning Service Styria (CC BY 4.0)