As a result of snowfall, likelihood of slab avalanches triggering increasing, esp. in ridgline W/N/E facing slopes above 2200m. Avalanches can be triggered by persons and reach medium size. Caution urged in transitions from shallow to deeper snow in the regions where it is windy. Danger zones are difficult to recognize. Isolated whumpf noises can indicate imminent danger.
Snowpack
dp.1: deep persistent weak layer
5-10cm of fresh snow is anticipated, locally more. Fresh snow and freshly generated snowdrifts lie deposited on W/N/W facing slopes above 2200m atop a weak old snowpack surface. The old snowpack is expansively metamorphosed with a loosely-packed surface of surface hoar and faceted crystals. South-facing slopes below 2000m: fresh snow and drifts are being deposited atop a crust.
Avalanche danger above the timberline is moderate, below that altitude danger is low. Small to medium-sized slab avalanches can be triggered by one sole skier. Danger zones occur esp. on shady, ridgeline steep slopes and in wind-loaded gulliex and bowls. Size and frequency tend to increase in frequency with ascending altitude and during the course of the day. Danger of mostly small-sized glide-snow avalanches on grass-covered slopes or rocky plates still prevails. Therefore, caution urged below glide cracks.
Snowpack
By tomorrow evening in the northern regions, 10-20cm of fresh snow is expected. Winds will be moderate to brisk from westerly to northwesterly directions, generating fresh, often trigger-sensitive snowdrift accumulations. Bonding to the old snowpack surface deteriorates with ascending altitude. The below-average snowpack depths are generally well consolidated. Snowpack surfaces are highly varied: high altitude shady slopes are often still powdery, elsewhere there are breakable crusts, sometimes wind crusts are capable of bearing loads. On sunny slopes, a melt-freeze crust forms. Due to dropping temperatures, gliding snow activity will gradually recede.
Tendency
Assess with caution the zones with fresh snowdrifts
Avalanche danger above 2000m is moderate, below that altitude danger is low. Due to southerly foehn winds, shallow fresh snowdrift accumulations are being generated which can be triggered as small avalanches even be minimum additional loading. Danger zones occur esp. in very shady gullies and bowls distant from ridgelines. Heightened danger of taking a fall needs adequate consideration. Avalanches in the old snow are isolated, possible only in extremely steep terrain. Gliding snow activity is increasing below 2400m. Avalanches can in isolated cases reach medium size. Small loose-snow avalanches in extremely steep terrain are possible.
Snowpack
Shady slopes: on steep shady slopes above 2000m the snowpack is expansively metamorphosed. Weak layers in the lowermost part of the snowpack are no longer likely to trigger. Shallow, hardened snowdrift accumulations have been deposited by southerly foehn winds on top of a faceted, expansively metamorphosed surface on very steep shady slopes. All in all, the snowpack surface is becoming even more variable due to wind impact. Sunny slopes: due to mild temperatures and solar radiation, the snowpack surface has become wet. During the cloudy nighttime hours a melt-freeze crust can hardly form. In general, there is very little snow on sunny slopes.
Tendency
Avalanche danger will increase due to fresh snow and winds.
Danger level
2200m
Avalanche Problem
Persistent weak layer
2200m
Caution: weak layers in old snowpack
As a result of snowfall, likelihood of slab avalanches triggering increasing, esp. in ridgline W/N/E facing slopes above 2200m. Avalanches can be triggered by persons and reach medium size. Caution urged in transitions from shallow to deeper snow in the regions where it is windy. Danger zones are difficult to recognize. Isolated whumpf noises can indicate imminent danger.
Snowpack
dp.1: deep persistent weak layer
5-10cm of fresh snow is anticipated, locally more. Fresh snow and freshly generated snowdrifts lie deposited on W/N/W facing slopes above 2200m atop a weak old snowpack surface. The old snowpack is expansively metamorphosed with a loosely-packed surface of surface hoar and faceted crystals. South-facing slopes below 2000m: fresh snow and drifts are being deposited atop a crust.
Tendency
Avalanche danger rising
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Assess with caution freshly generated snowdrifts
Avalanche danger above the timberline is moderate, below that altitude danger is low. Small to medium-sized slab avalanches can be triggered by one sole skier. Danger zones occur esp. on shady, ridgeline steep slopes and in wind-loaded gulliex and bowls. Size and frequency tend to increase in frequency with ascending altitude and during the course of the day. Danger of mostly small-sized glide-snow avalanches on grass-covered slopes or rocky plates still prevails. Therefore, caution urged below glide cracks.
Snowpack
By tomorrow evening in the northern regions, 10-20cm of fresh snow is expected. Winds will be moderate to brisk from westerly to northwesterly directions, generating fresh, often trigger-sensitive snowdrift accumulations. Bonding to the old snowpack surface deteriorates with ascending altitude. The below-average snowpack depths are generally well consolidated. Snowpack surfaces are highly varied: high altitude shady slopes are often still powdery, elsewhere there are breakable crusts, sometimes wind crusts are capable of bearing loads. On sunny slopes, a melt-freeze crust forms. Due to dropping temperatures, gliding snow activity will gradually recede.
Tendency
Assess with caution the zones with fresh snowdrifts
Still low avalanche danger. Danger spots can be located in high altitudes in shady, extremely steep areas. There slab avalanches and driftsnow accumulations could be triggered. Gliding snow avalnaches in steep grass-slopes cannot be ruled out.
Snowpack
In high altitudes small amounts of snowdrift accumulations have formed which partially are on top of faceted snow which can be considered as weak layers in rare cases. The snow surface is hard in high altitudes. Blown-off areas are eventually icy. Weak layers in the snow base (kinetic metaphorphosis) and is hardly prone to triggering. On sunny slopes the surface got wet, it is hardly possible to settle during the night due to cloudiness.
Tendency
Increasingly coller mountain weather with some precipitation. The avalanche danger stays low.
BEFORE NOON Danger level
treeline
Avalanche Problem
Wind slab
Treeline
AFTERNOON Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Avalanche danger is low. Wet snow can be problematic. At intermediate altitudes isolated small loose snow avalanches can trigger naturally. This applies in particular to extremely steep rocky terrain. On very steep slopes with sufficient snow over smooth ground small glide-snow avalanches cannot be excluded
Snowpack
At intermediate altitudes the snowpack surface is soft already early in the morning due to mild temperatures and lack of outgoing radiation. Below 2000m, it is in many places thoroughly moist down to the ground, but by and large stable. In particular in places with little snow the snowpack base is wet. Only on shady side high altitude slopes there is still dry powdery snow. Snow cover and snow profile analyses show that the snowpack stability is good. There is not much snow for this time of the year.
Tendency
Avalanche danger will increase a little due to intensifying winds and fresh snow.
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Snowpack
Tendency
Danger level
treeline
Avalanche Problem
Wind slab
Treeline
Small danger zones on extremely steep shady slopes. Isolated glide-snow avalanches possible.
Avalanche danger is low. Triggering of slab avlaanches is currently possible only in few places on extremely steep slopes. Wherever foehn wind impact is felt, small snowdrift accumulations merit attentiveness. Gliding snow activity is increasing below 2400m. Avalanches can reach medium size in isolated cases. Small wet loose-snow avalanches are possible in extremely steep terrain.
Snowpack
Shady slopes: on steep shady slopes above 2000m the snowpack is expansively metamorphosed. Weak layers in the lowermost part of the snowpack are no longer likely to trigger. Shallow, hardened snowdrift accumulations have been deposited by southerly foehn winds on top of a faceted, expansively metamorphosed surface on very steep shady slopes. All in all, the snowpack surface is becoming even more variable due to wind impact. Sunny slopes: due to mild temperatures and solar radiation, the snowpack surface has become wet. During the cloudy nighttime hours a melt-freeze crust can hardly form. In general, there is very little snow on sunny slopes.
Tendency
Avalanche danger will increase due to fresh snow and winds.
Danger level
2000m
Avalanche Problem
Persistent weak layer
2000m
Avalanche danger rising
As a result of snowfall, likelihood of slab avalanches triggering increasing, esp. in ridgline NW/N/NE facing slopes above 2000m. Avalanches can be triggered by persons and reach medium size, esp. by large additional loading.
Snowpack
dp.1: deep persistent weak layer
5-10cm of fresh snow is anticipated, locally more. Fresh snow and freshly generated snowdrifts lie deposited on W/N/W facing slopes above 2200m atop a weak old snowpack surface. The old snowpack is expansively metamorphosed with a loosely-packed surface of surface hoar and faceted crystals. South-facing slopes below 2000m: fresh snow and drifts are being deposited atop a crust.
Tendency
Regionally rising avalanche danger
Danger level
Avalanche Problem
Wind slab
Snowpack
Tendency
Danger level
Snowpack
Tendency
BEFORE NOON Danger level
AFTERNOON Danger level
Avalanche Problem
Wind slab
Avalanche danger low. The amount of snow is low.
Still low avalanche danger. Danger spots can be located in high altitudes in shady, extremely steep areas. There slab avalanches and driftsnow accumulations could be triggered. Gliding snow avalnaches in steep grass-slopes cannot be ruled out.
Snowpack
In high altitudes small amounts of snowdrift accumulations have formed which partially are on top of faceted snow which can be considered as weak layers in rare cases. The snow surface is hard in high altitudes. Blown-off areas are eventually icy. Weak layers in the snow base (kinetic metaphorphosis) and is hardly prone to triggering. On sunny slopes the surface got wet, it is hardly possible to settle during the night due to cloudiness.
Tendency
Increasingly coller mountain weather with some precipitation. The avalanche danger stays low.
