Avalanche danger • Grieskogelgruppe region • 2025/26
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Grieskogel Mountains
Grieskogelgruppe
Sun 22 Feb
Day Risk Profile
3
Considerable
below treeline
4
High
above treeline
Avalanche Problems
Above treeline
High
(4)
Dry avalanches
· all day
Persistent weak layersSlab4
N, NE, E, W, NW
above treeline
LargeManyVery poor
GM.1GM.6
Field notes▾
Persistent Snowpack layer in which the crystals are poorly bonded and the layer has the potential to fail. Typical crystals in dry weak layers causing avalanches are : precipitation particles; surface hoar; faceted crystals; hollow crystals; graupel. Generally >1mm in size, loose grains with few bonds Wet weak layers can be formed by all snow crystal/grain types.EAWS glossary are very challenging to recognise. Distinctive noise (resembling a “whumpf” sound) occurring when a weak layer beneath a slab collapses. The air of the weak layer is forced outside the snowpack, with the resulting whumpf sound being heard. The sound usually indicates an unstable situation and can be accompanied by surface cracking. A whumpf is a clear avalanche alert.EAWS glossary sounds and shooting cracks are typical when present, but you can have a serious weak layer with no warning signs at the surface. Knowledge of how the Snow deposited on the ground in a multiplicity of layers.EAWS glossary has evolved is essential. SLF's travel advice is direct: travel conservatively, avoid terrain where the consequences of being caught are large, and treat the history of weather and snow as more important than what you can see today. Read the full bulletin.
Rolling snowballs, deep penetration when you step or ski, and small natural slides are clear signals that the Snow deposited on the ground in a multiplicity of layers.EAWS glossary is losing strength. After a clear, cold night the surface often freezes into a strong supporting Layer of hard-compacted snow resulting from a melt-freeze process or wind.EAWS glossary, and conditions are favourable in the early morning. After a warm, overcast night, the problem may be present from the start of the day. Plan early returns and watch the runout zones below you.
Easy to spot - the snow is fresh. Look at recent avalanche activity in similar terrain, and pay attention to how much new snow has fallen in the last three days. Critical loading depends on temperature, wind, and what was on the surface before the storm. SLF advises waiting until the Snow deposited on the ground in a multiplicity of layers.EAWS glossary has had time to bond before committing to steep terrain in fresh snow.
A very dangerous avalanche situation will persist.
Large quantities of fresh snow and the wind-drifted snow of the last few days are lying on top of a weakly bonded Snow layers deposited from earlier precipitation, prior to fresh fallen snow. Old snow layers consist of metamorphosed snow crystals.EAWS glossary. The fresh snow and the wind slabs formed by the strong to storm force westerly wind are very prone to triggering in all Direction in which a slope faces as indicated by compass direction of the fall line; i.e. a north slope faces in a northerly direction.EAWS glossary. Winter sport participants can release avalanches very easily. The Locations delineated by aspect or altitude where avalanches can trigger and people or objects are at risk.EAWS glossary are numerous. They are to be found in all altitude zones, especially in areas close to the tree line, as well as above the tree line. As a consequence of the heavy snowfall more natural avalanches are possible. These can in some cases penetrate deep layers and reach large size, in particular on west, north and east facing slopes above the tree line. Caution is to be exercised in particular in Slope facing downwind/ wind sheltered aspect. Snow deposits can attain several times average snow depth.EAWS glossary starting zones that have retained the snow thus far. In the typical avalanche paths here avalanches can in very isolated cases reach very large size. Exposed transportation routes can be endangered. In addition individual wet and gliding avalanches are possible. This applies especially on cut and grassy slopes below approximately 1800 m.
Outlook
→Constant avalanche danger
23 February 2026
The snow sport conditions outside marked and open pistes remain very dangerous. Avalanches can be released very easily.
Snowpack & Weather
Snowpack▾
20 to 30 cm of snow, and up to 40 cm in some localities, fell on Saturday. Up to intermediate altitudes rain has fallen. The wind will be strong to storm force in some cases. The Snow deposited on the ground in a multiplicity of layers.EAWS glossary will be prone to triggering. Large quantities of fresh snow and the wind-drifted snow are bonding only slowly with the Snow layers deposited from earlier precipitation, prior to fresh fallen snow. Old snow layers consist of metamorphosed snow crystals.EAWS glossary. The various wind slabs have bonded insufficiently with each other and the old snowpack. Avalanche prone Snowpack layer in which the crystals are poorly bonded and the layer has the potential to fail. Typical crystals in dry weak layers causing avalanches are : precipitation particles; surface hoar; faceted crystals; hollow crystals; graupel. Generally >1mm in size, loose grains with few bonds Wet weak layers can be formed by all snow crystal/grain types.EAWS glossary exist in the bottom section of the snowpack on west, north and east facing slopes. The rain gave rise to softening of the snowpack at low and intermediate altitudes.
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