Circumvent fresh snowdrifts. Naturally triggered avalanches possible, sometimes plummeting down to green zones.
Snowdrift accumulations which are prone to triggering are being generated particularly in gullies, bowls and behind protruberances in the landscape due to fresh snow and moderate-velocity winds. The freshly generated drifts can be triggered even by one sole skier. Particularly unfavorable are shady slopes. Avalanches can in isolated cases trigger naturally and grow to medium size. They can also plummet in steep gullies down to green zones. As the snowfall level drops, size of danger zones will tend to increase during the course of the day.
Snowpack
dp.6: cold, loose snow and wind dp.1: deep persistent weak layer
Up to 50 cm of fresh snow is expected regionally, locally more. Often moderate-velocity winds will transport the fresh fallen snow. Fresh snow and ddrifts will be deposited atop a weak old snowpack surface above 1800m. The old snowpack is expansively metamorphosed, and faceted, and is highly diverse even over small areas.
Circumvent fresh snowdrifts prone to triggering at high altitudes due to southerly foehn wind
Avalanche danger levels above 2000m are moderate. Snowdrifts can be triggered as a small-to-medium sized slab avalanche in some places by minumum additional loading. Danger zones also occur distant from ridgelines, especially in gullies and bowls and behind protruberances in the landscape. Surface-near avalanches above 2200m can fracture down to more deeply embedded layers of the snowpack. Danger zones occur particularly on north and east-facing slopes, above 2400m also on south and west-facing slopes. Caution urged in transitions from shallow to deep snow. Naturally triggered small-to-medium sized glide-snow avalanches are possible. Circumvent zones below glide cracks.
Snowpack
Fresh and older snowdrift accumulations are being deposited atop a weak melt-freeze crust up to 2500m, abover that altitude atop loosely-packed, expansively metamorphosed snow. Above about 2200m there are weak layers with faceted crystals evident inside the old snowpack, often prone to triggering. The entire snowpack can glide away over steep rocky places and grass-covered slopes.
Tendency
Avalanche danger levels to increase on Tuesday due to fresh snowfall
Snowdrift accumulations which are prone to triggering are being generated particularly in gullies, bowls and behind protruberances in the landscape due to fresh snow and moderate-to-strongvelocity winds. Avalanches can in isolated cases trigger naturally and grow to medium size. They can also trigger in the weak layers in isolated cases and grow to medium size. Particularly unfavorable are shady slopes. Size and frequency of danger zones will tend to increase during the course of the day.
Snowpack
dp.6: cold, loose snow and wind dp.1: deep persistent weak layer
Up to 25 cm of fresh snow is anticipated, locally more. Often strong winds will transport the fresh fallen snow. The fresh snowdrift accumulations will be deposited atop a weak old snowpack surface particularly on NW/N/SE facing slopes above 2400m. The old snowpack is expansively metamorphosed, and faceted. The snowpack is highly diverse even over small areas.
Tendency
Circumvent fresh snowdrifts
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Gliding snow
Snowpack
Tendency
BEFORE NOON Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Gliding snow
AFTERNOON Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Gliding snow
Beware snowdrifts at highest altitudes
Avalanche danger above 2200 m is moderate, below that altitude danger is low. Main problem: snowdrift accumulations. These can be triggered by one sole skier. Avalanche prone locations occur in steep ridgeline terrain on NW/N/NE facing slopes and in wind-loaded gulles and bowls. In isolated cases avalanches can fracture down to more deeply embedded layers of the old snowpack and grow to medium size. Wet loose-snow avalanches can be triggered in very steep terrain by one sole skier. Loose-snow avalanches tend to be small sized. Possibility of medium-sized glide-snow avalanches on steep smooth grass-covered slopes.
Snowpack
Due to dry winds, thin melt-freeze crusts can form on the surface in exposed terrain. The uppermost 10-15 cm of the snowpack is slightly moist to moist up to high altitudes, often really wet. At high altitudes, large snowdrift accumulations have formed which are often prone to triggering. Weak layers inside the old snowpack have consolidated in the interim and are trigger-sensitive only in isolated cases. The snowpack base is moist-to-wet down to the ground. Gliding snow movements are possible.
Tendency
Weather remains variable. Not much precipitation anticipated, little change expected.
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Persistent weak layer
Treeline
Snowpack
Tendency
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Avalanche danger is low. In few places snowdrift accumulations can trigger small slab avalanches by minimum additional loading. The risks of being forced to take a fall outweigh those of being buried in snow masses. Small-to-medium glide-snow avalanches are still possible. Circumvent zones below glide cracks.
Snowpack
Tendency
Danger level
1800m
Avalanche Problem
Wind slab
1800m
Caution: fresh snow and fresh snowdrift accumulations. Too little snow on the ground for this juncture of the season.
Snowdrift accumulations which are prone to triggering are being generated particularly in gullies, bowls and behind protruberances in the landscape due to fresh snow and moderate-to-strong velocity winds. Avalanches can in isolated cases be triggered by one sole skier. Particularly unfavorable are shady slopes where there are weak layers inside the old snowpack. Danger zones are often covered and difficult to recognize, releases are mostly small-sized. Size and frequency of danger zones will tend to increase with ascending altitude.
Snowpack
dp.1: deep persistent weak layer
Up to 20 cm of fresh snow is anticipated, locally more. Often strong winds will transport the fresh fallen snow. The fresh snowdrift accumulations will be deposited atop a weak old snowpack surface particularly on NW/N/SE facing slopes above 1800m. The old snowpack is expansively metamorphosed, and faceted. The snowpack is highly diverse even over small areas.
Tendency
Caution: fresh snow and drifts at high altitudes
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Gliding snow
Snowpack
Tendency
Danger level
treeline
Avalanche Problem
Persistent weak layer
Treeline
Wind slab
Treeline
-
Beware of fresh drift snow at high altitudes.
The avalanche danger is rated as moderate above the tree line. Attention must be paid to the drift snow and old snow problem. The danger spots are in the north and east sectors. It cannot be completely ruled out that a snow slab can be triggered with a small additional load. In places, avalanches can tear through layers of old snow close to the ground and become medium-sized.
Snowpack
At high altitudes, the old snow surface is usually hard and icy. Under the hard layer, the accumulating transformation weakens the snowpack foundation. The new snow (up to 20 cm) is deposited on a hard snow layer or, on the north side, on a soft layer, depending on the exposure and altitude. The bonding of the fresh snow or drifting snow layer will not be sufficient. In general, the snow cover is very unevenly distributed, with little snow from the middle elevations downwards.
Tendency
On Wednesday, the high-altitude current will turn back to the west. This means that the clouds in Styria will clear again during the course of the day and make way for sunshine. Rain and snowfall have already subsided during the night and Wednesday will be dry. The avalanche danger remains the same.
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Shallow snowdrift accumulations can be trigger sensitive over small areas
Avalanche danger is low. In few places snowdrift accumulations can trigger small slab avalanches by minimum additional loading. The risks of being forced to take a fall outweigh those of being buried in snow masses. Small-to-medium glide-snow avalanches are still possible. Circumvent zones below glide cracks.
Snowpack
Freshly generated snowdrift accumulations are deposited widespread atop a moistened old snowpack surface and are bonding well for the most part. The entire snowpack can glide away over steep rocky plates or grass-covered slopes.
Tendency
Avalanche danger levels to increase on Tuesday due to fresh snowfall
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Snowpack
Due to dry winds, thin melt-freeze crusts can form on the surface in exposed terrain. The uppermost 10-15 cm of the snowpack is slightly moist to moist up to high altitudes, often really wet. At high altitudes, large snowdrift accumulations have formed which are often prone to triggering. Weak layers inside the old snowpack have consolidated in the interim and are trigger-sensitive only in isolated cases. The snowpack base is moist-to-wet down to the ground. Gliding snow movements are possible.
Tendency
Danger level
1800m
Avalanche Problem
Wind slab
1800m
Snowpack
dp.6: cold, loose snow and wind dp.1: deep persistent weak layer
Tendency
Danger level
2000m
Avalanche Problem
Wind slab
2000m
Persistent weak layer
2200m
Shallow snowdrifts blanket persistent weak layer
Avalanche danger levels above 2200m is moderate, below that altitude danger is low. Shallow snowdrift accumulations can be triggered as a small-sized slab avalanche even by minimum additional loading (one skier). Such releases can fracture down to more deeply embedded layers of the snowpack above 2200m and then grow to medium size, particularly on W/N/S facing slopes. The shallow-snow transitions in snow-filled gullies and bowls are especially treacherous. Danger zones tend to increase in frequency with ascending altitude.
Snowpack
Freshly generated snowdrift accumulations are being deposited atop a shallow melt-freeze crust atop of which is loosely-packed, faceted and expansively metamorphosed snow. Above about 2200m there are weak layers inside the old snowpack consisting of faceted crystals, frequently of surface hoar, which are often prone to triggering. The entire snowpack can glide away over steep rocky plates and grass-covered slopes. All in all, there is too little snow on the ground, exposed zones are windblown, gullies and bowls filled to the brim with snow.
Tendency
Avalanche danger levels will increase due to fresh snow and wind.
Danger level
1700m
Avalanche Problem
Wind slab
1700m
Persistent weak layer
1700m
Snowpack
Tendency
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
-
Low avalanche danger - fresh snow covering the meadows.
The avalanche danger is low. There are isolated danger spots. These are located in high, shady, very steep entrances to gullies and hollows. Small slab avalanches can be triggered here in drifting snow, particularly due to high additional loads. In addition to the risk of burial, the danger of being swept away and falling should also be taken into account.
Snowpack
There is still more or less continuous snow cover only at high altitudes and on the shaded side. Exposed terrain forms are mostly blown off and bare or icy, only in hollow forms such as gullies and hollows does an old snow cover exist, which is weakened in places by angular crystals. Fresh snow (10 to 20 cm) is deposited on the layers described, some of which is transported.
Tendency
Wednesday will be sunny and warmer again. The snow cover may settle.
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Avalanche danger is low. Main problem: wet snow. Wet loose-snow avalanches can be triggered by one sole skier in steep terrain. On smooth steep grassy slopes, isolated glide-snow avalanches can trigger naturally. Avalanche releases are mostly small-sized.
Snowpack
Due to dry winds, thin melt-freeze crusts can form on the surface in exposed terrain. The uppermost 10-15 cm of the snowpack is slightly moist to moist up to high altitudes, often really wet. At high altitudes, large snowdrift accumulations have formed which are often prone to triggering. Weak layers inside the old snowpack have consolidated in the interim and are trigger-sensitive only in isolated cases. The snowpack base is moist-to-wet down to the ground. Gliding snow movements are possible.
Tendency
Weather remains variable. Not much precipitation anticipated, little change expected.
