Bulletin d’avalanche

Bex-Villars

SLF
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Danger d’avalanche

All elevations
2 · Modéré
Périmé — ce bulletin a expiré 4 years ago. Vous consultez des conditions passées, pas le bulletin en cours.

Points saillants

In the east a considerable avalanche danger will be encountered in some regions.

Problèmes avalancheux

  • Wind slab

    • Toutes altitudes
  • Gliding snow

    • Toutes altitudes

Avalanche Activity

The wind slabs of the last few days can still be released in some cases. Avalanches can reach medium size. The number and size of avalanche prone locations will increase with altitude. Backcountry touring and other off-piste activities call for careful route selection.

Snowpack Structure

Below approximately 2600 m individual gliding avalanches are possible.

Weather Synopsis

Snowpack Winds from easterly directions have given rise to snow drift accumulations in recent days, in particular in the Jura, on the northern flank of the Alps and generally at elevated altitudes. They are to be found, in particular, in gullies and bowls and behind abrupt changes in terrain, and can still be released in some places. Faceted weak layers exist in deep layers of the snowpack, in particular on north facing slopes above approximately 2200 m and on south facing slopes above approximately 2800 m. In both southern Valais and Grisons in particular, these weak layers remain prone to triggering. In particular in the Vaud Alps and in Valais, isolated gliding avalanches can occur on steep, grassy slopes. Observed weather review Tuesday, 24.01.2023 In the mountains it was fairly sunny. Fresh snow

  • Southern Visp valleys; Simplon region, Lower Engadine, Val Müstair: a few centimetres
  • Elsewhere: dry

Temperature At midday at 2000 m: about -4 °C Wind From the southeast

  • Moderate to strong on Monday night on the northern Alpine ridge and in the Jura, otherwise mostly light to moderate
  • Easing as the day progressed

Weather forecast through Wednesday, 25.01.2023 After a partly cloudy night, it will be mostly sunny in the mountains on Wednesday. Fresh snow

  • On Tuesday night in Val Müstair: a few centimetres
  • Elsewhere: dry

Temperature At midday at 2000 m: about -1 °C Wind Light, at elevated altitudes light to moderate, from the east Outlook through Friday, 27.01.2023 Above the low stratus, it will remain mostly sunny in the mountains. The northeasterly wind will be light to moderate at first, and then on Friday become moderate to strong in the Jura and the central and eastern parts of the main Alpine ridge in particular. On Friday the temperature will decrease appreciably again. The avalanche danger will not change significantly.

Bulletin data: WSL Institute for Snow and Avalanche Research SLF (CC BY 4.0)

Régions couvertes