Ski Area Factsheets

Ski areas / Environment / Switzerland

Swiss avalanche bulletin archive

Historical evidence only. The selected SLF bulletin is dated 2026-04-30. Never use this page for current avalanche, snowpack, route or travel decisions. Check the current official SLF bulletin before any mountain journey.
Evidence found
1 of 3 bulletin features match this dated view.
Source coverage
362 approved dated R2 snapshots from 2024-11-01 to 2026-04-30; dates within that range are not assumed to be continuous. This page is displaying the 2026-04-30 source object, imported 2026-08-08.
What this means
The page reproduces source-labelled regions, danger ratings, avalanche problems and narrative environment fields published for the selected historical bulletin date.
What this does not mean
It is not today's bulletin, a local slope assessment, an access decision or a forecast for a ski area. Historical ratings must never be used for present travel or safety decisions.

Bulletin 5d8f6419-d0db-44b7-bffa-7babee3291c4

Low · all_day Moderate · later

Published: 2026-04-29 15:00:00 UTC · Valid: 2026-04-29 15:00:00 UTC to 2026-04-30 15:00:00 UTC

107 source-labelled regions

Gadmertal, Corvatsch, Zermatt, Gstaad, Glarus Süd-Sernftal, Saas Fee, Riederalp, Wildhorn, Samnaun, Lauterbrunnen, Davos, Val S-charl, obere Leventina, südliches Obergoms, südliches Prättigau, alto Moesano, Avers, Flims, Monte Rosa, Hasliberg - Rosenlaui, Montana, Leuk, Glarus Süd-Grosstal, Martigny-Verbier, Engstligen, Mountet, Iffigen, Binntal, Conthey-Fully, Konkordia Gebiet, Bergell, Engelberg, Domleschg - Lenzerheide, Calanda, Flumserberg, Bedrettotal, Grindelwald, Val d'Entremont-Val Ferret, nördliches Urseren, basso Moesano, Val Chamuera, Alpstein - Alvier, Val d'Hérens, Obersaxen - Safiental, Génépi, Melchtal, Arolla, St. Moritz, oberes Puschlav, Maderanertal, nördliches Tujetsch, Turtmanntal, untere Maggiatäler, Münstertal, Val Sumvitg, Monthey-Val d'Illiez, Guttannen, Sur Tasna, Bisistal, Lenk, Emosson, östliche Silvretta, Val Suot, nördliches Prättigau, Bleniotal, Grimselpass, Mattmark, westliche Silvretta, Obersimmental, Blüemlisalp, Brienz-Interlaken, Glarus Mitte, Rheinwald, Adelboden, Val d'Anniviers, Pays d'Enhaut, Liechtenstein, Bivio, Riviera, nördliches Simplon Gebiet, Schächental, Reckingen, Schams, Savognin, Schreckhorn, nördliches Obergoms, Haut Val de Bagnes, unteres Puschlav, Bex-Villars, Zervreila, untere Vispertäler, Schanfigg, untere Leventina, südliches Simplon Gebiet, Leukerbad - Lötschental, Bernina, Jungfrau - Schilthorn, Zuoz, Val dal Spöl, Kandersteg, Albulatal, Sarganserland, Meiental, südliches Tujetsch, südliches Urseren, Uri Rot Stock, obere Maggiatäler

Avalanche problems (source fields)

  • No Distinct Avalanche Problem · Low · all_day · aspects: N, NE, E, SE, W, NW · elevation: 2400–not published m

    Danger level "low" (1) in west to northeast to southeast facing aspects above 2400m.

    Individual avalanche prone locations for dry avalanches are to be found in particular in extremely steep terrain. Caution is to be exercised on rather lightly snow-covered shady slopes in little used backcountry terrain. In addition small wind slabs formed in high Alpine regions. They are to be evaluated with care and prudence in particular in extremely steep terrain. Apart from the danger of being buried, restraint should be exercised as well in view of the danger of avalanches sweeping people along and giving rise to falls. The Avalanche Warning Service currently has only a small amount of information that has been collected in the field, so that the avalanche danger should be investigated especially thoroughly in the relevant locality.

  • Wet Snow · Moderate · later

    As the day progresses as a consequence of warming during the day and solar radiation there will be only a slight increase in the danger. This applies in particular on very steep north facing slopes below approximately 2500 m, as well as on very steep east and west facing slopes between approximately 2500 and 3000 m. Mostly avalanches are medium-sized. Backcountry tours and ascents to alpine cabins should be started early and concluded timely.

Source narrative

Weather forecast
Weather forecast to Thursday — In the north, the night into Thursday will be mostly clear while during the day it will be mostly sunny. In the south, there will only be clear spells overnight. Conditions will become increasingly sunny over the course of the day. Fresh snow — - Temperature — At midday at 2000 m, around +6 °C in the north and +2 °C in the south Wind — Mostly light; in the high Alpine regions occasionally moderate from northerly directions
Weather review
Weather review for Wednesday — There was widespread precipitation overnight to Wednesday. There were clear spells in the west during the day; elsewhere it was very cloudy with showers. The snowfall level was between 2000 and 2300 m. Fresh snow — From Tuesday afternoon to Wednesday afternoon, there was a widespread 5 to 15 cm of fresh snow above 2500 m Temperature — At noon at 2000 m, between +8 °C in the west and +4 °C in the east and south Wind — Light from southerly directions, occasionally moderate in the north
Snowpack structure
Snowpack — Saturation of the snowpack is well advanced. The most precarious areas are slopes where weak layers in the old snowpack are becoming wet for the first time. At present, this is mainly affecting north-facing slopes between approximately 2200 and 2500 m, and east- and west-facing slopes between approximately 2500 and 2800 m. In many places, south-facing slopes are snow-free up to around 3000 m; where there is still snow, it is saturated as far as the high alpine regions. In the north above approximately 2000 m, the mainly clear overnight conditions are resulting in the formation of a load-bearing crust, which softens over the course of the day. There is less outgoing longwave radiation in the south with only a thin crust being formed.
Tendency
Outlook to Saturday — After clear nights, conditions will be mainly sunny on both days. Clouds will move in from the northwest on Saturday afternoon and there is a possibility of isolated showers. Winds will mostly be light. The zero-degree level will be around 3000 m. Conditions will be favourable each morning. The danger of wet avalanches will increase somewhat over the course of the day.

Source and licence

Attribution: WSL Institute for Snow and Avalanche Research SLF. Creative Commons Attribution 4.0 International. Terms checked 24 Jul 2026. The importer archive is dated evidence; it is not a live feed. See all source states.