Persistent weak layers
- Above 1,800 m
Old snow in high altitudes still prone to triggering.
Old snow in high altitudes still prone to triggering.
Moderate avalanche danger above 1.800 m below that low danger. The main problem still a weak old snow cover underneath fresh snowdrift deposits. Danger spots are predominately in entries and peripheral areas of extremly steep gullies and bowls in the north to east expositions. There spontaneous glidingsnow or gliding loose snow avalanches coming from extremly steep slopes are possible.
The snowcover is moist. It was able to settle at least on the surface due to cooling. It softens only with sufficient radiation. In higher northwest to eastern sectors older mostly settled snowdrift areas existing. In places a old snow covers which is weakened due to equilibirum metamorphosis. This combination can be prone totriggering. Exposed areas are icy and hard. In steepp areas the wet snow cover is prone to glide when it is on smooth surfaces or grass.
In the northeastern regions Friday night will be cloudy. During the day the mountain the weather is divergent. North of the Alpenhauptkamm a sunny day with only a few clouds in medium heights but it stays dry. Further south especially in the foothills the most time of the day is cloudy. The summits ar foggy the visibility is very poor. In the morning little snowfall is possible but in the afternoon precipitation stops and is cleares up. Winds are moderate in expose areas winds are brisk coming from south. Temperatures in 2.000 m are around -4 degrees, in 1.500 m around -1 degrees. In norther regions it will be milder.
On Sunday sunny mountain weather is called. The avalanche danger decreasing.
Bulletin data: Avalanche Warning Service Styria (CC BY 4.0)