Lechtaler Alpen Mitte · 1 February 2026

Day Risk Profile

Low

below treeline

Moderate

above treeline

Avalanche Problems

Above treeline

Moderate (2) Dry avalanches · all day

Persistent weak layers Slab 2

N, NE, E, W, NW

above treeline

Medium Some Poor

GM.6 GM.5

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

Avalanche Activity

Wind slabs and weakly bonded old snow represent the main danger.

Fresh and somewhat older wind slabs are prone to triggering above the tree line. These are covered with new snow in some cases and therefore difficult to recognise. Avalanches can in some places be released, even by a single winter sport participant and reach medium size. 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 the tree line. Caution is to be exercised in particular in 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, and behind abrupt changes in the terrain, as well as on wind-loaded slopes. In the regions neighbouring those that are subject to danger level 3 (considerable) the prevalence and size of the avalanche prone locations will increase.

Outlook

Constant avalanche danger

2 February 2026

Weakly bonded old snow is to be evaluated with care and prudence.

Snowpack & Weather

Snowpack

The new snow and wind slabs 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 old snowpack consists of Snow grains, solid, with multiple flat glassy faces and sharp edges. Developed from faceting metamorphism, usually poorly bonded to one another (fewer contact points), a critical factor in avalanches if a faceted layer is covered with bonded snow. Typical grain size: 0.5 to 3 mm See also: www.snowcrystals.itEAWS glossary.

Source

ALBINA

Issued

31 Jan 16:27 UTC

Valid until

1 Feb 16:00 UTC

Next update

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Schedule

Off-schedule