Pine' - Valle dei Mocheni · 4 April 2026

Day Risk Profile

Problem type changes as the day progresses

Low

below treeline

Earlier

Moderate

above treeline

Earlier

Moderate

Later

Avalanche Problems

Above treeline

Moderate (2) Dry avalanches, earlier

Wind slab + Persistent weak layers Slab 2

All aspects

above treeline

Medium Some Poor

GM.6 GM.1

Field notes

Wind slab

Look for fresh snow deposits on Slope facing downwind/ wind sheltered aspect. Snow deposits can attain several times average snow depth.EAWS glossary, 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 ridgelines and abrupt changes in terrain — these are where the wind has loaded the snow into slabs that are easy to trigger. Recent avalanches, shooting cracks under your weight, and 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 are clear confirmations of the problem. The safest move is to avoid wind-loaded terrain entirely. NB wind signs alone don't always mean an avalanche problem exists, and the age of drifted snow is hard to judge.

Persistent weak layers

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

Moderate (2) Dry avalanches, later

Wind slab + Persistent weak layers Slab 2

All aspects

above treeline

Medium Some Poor

GM.6 GM.1

Field notes

Wind slab

Persistent weak layers

Source: SLF Avalanche Bulletin Interpretation Guide

Below 2500 m

Moderate (2) Wet avalanches, later

Wet snow Slab 2

E, SE, S, SW, W

below 2500m

Medium Some Poor

GM.6 GM.1

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

Wind slabs and weakly bonded old snow require caution.

Avalanches can be released, in particular by large loads. This applies in particular above the tree line, 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. Precarious 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 on very steep shady slopes. These 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 in east to north to west facing 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. Medium-sized and, in isolated cases, large avalanches are possible especially adjacent to ridgelines and in gullies and bowls. Increase in danger of moist and wet snow slides as a consequence of warming during the day and solar radiation.

Outlook

Constant avalanche danger

5 April 2026

Saturday: The avalanche danger will persist.

Snowpack & Weather

Snowpack

The sometimes storm force wind has transported some snow. As a consequence of a strong to storm force wind from northerly directions, sometimes large wind slabs formed in the last few days 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. The fresh wind slabs are lying on the unfavourable surface of an Snow layers deposited from earlier precipitation, prior to fresh fallen snow. Old snow layers consist of metamorphosed snow crystals.EAWS glossary in particular on east to north to west facing 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 and generally above the tree line. The solar radiation will give rise as the day progresses to moistening of the Snow deposited on the ground in a multiplicity of layers.EAWS glossary below approximately 2500 m.

Source

ALBINA

Issued

3 Apr 15:21 UTC

Valid until

4 Apr 15:00 UTC

Next update

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Schedule

Off-schedule