Grieskogelgruppe · 28 February 2026

Day Risk Profile

Problem type changes as the day progresses

Low

below 2000m

Earlier

Considerable

above 2000m

Earlier

Considerable

Later

Avalanche Problems

Above 2000 m

Considerable (3) Dry avalanches, earlier

Persistent weak layers Slab 3

N, NE, E, W, NW

above 2000m

Large Many Poor

GM.1 GM.10

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.

Source: SLF Avalanche Bulletin Interpretation Guide

Considerable (3) Dry avalanches, later

Persistent weak layers Slab 3

N, NE, E, W, NW

above 2000m

Large Many Poor

GM.1 GM.10

Field notes

Source: SLF Avalanche Bulletin Interpretation Guide

Below 2400 m

Considerable (3) Wet avalanches, later

Wet snow Slab 3

E, SE, S, SW, W

below 2400m

Medium Some Very poor

GM.1 GM.10

Field notes

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.

Source: SLF Avalanche Bulletin Interpretation Guide

Avalanche Activity

Weakly bonded old snow requires caution. The danger of wet avalanches will increase significantly during the day.

Avalanches can in many cases be released in the Snow layers deposited from earlier precipitation, prior to fresh fallen snow. Old snow layers consist of metamorphosed snow crystals.EAWS glossary and reach large size. This applies even in case of a single winter sport participant. The Locations delineated by aspect or altitude where avalanches can trigger and people or objects are at risk.EAWS glossary are to be found in particular on steep west, north and east facing slopes above approximately 2000 m. Individual avalanche prone locations are to be found also on steep sunny slopes above approximately 2400 m. Caution is to be exercised in particular in little used terrain, as well as at transitions from a shallow to a deep Snow deposited on the ground in a multiplicity of layers.EAWS glossary, when entering Usually a steep, elongated, eroded trench; typically prone to snowdrift accumulation.EAWS glossary and Rounded or elongated concavity; typically tending to accumulate snowdrift.EAWS glossary for example. In their paths avalanches can entrain the wet snow. This extends the avalanche runout distances. Remotely triggered avalanches are possible. 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 the formation of shooting cracks when stepping on the snowpack serve as an alarm indicating the danger. As a consequence of warming during the day and solar radiation wet avalanches are to be expected. This applies in particular on very steep sunny slopes, and at the base of rock walls. The runout zones are to be treated with caution.

Outlook

Constant avalanche danger

1 March 2026

Avalanches can be released in the weakly bonded old snow by a single winter sport participant. <br/> The danger of wet snow slides and avalanches will already exist in the early morning, after an overcast night especially on the Main Alpine Ridge and to the north. In the other regions the danger of wet avalanches will increase during the day, in particular on steep sunny slopes at intermediate and high altitudes.

Snowpack & Weather

Snowpack

Distinct 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 Snow layers deposited from earlier precipitation, prior to fresh fallen snow. Old snow layers consist of metamorphosed snow crystals.EAWS glossary in particular on west, north and east facing slopes. Outgoing longwave radiation during the night will be good over a wide area. Sunshine and high temperatures will give rise as the day progresses to rapid and thorough wetting of the Snow deposited on the ground in a multiplicity of layers.EAWS glossary. This applies especially on steep sunny slopes below approximately 2400 m.

Source

ALBINA

Issued

27 Feb 16:00 UTC

Valid until

28 Feb 16:00 UTC

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