On Wednesday conditions will be very sunny in the mountains. In the south, there will be a possibility of isolated showers over the course of the day. On Thursday conditions will be very sunny in Valais and the south. In the north, the sometimes heavy broken cloud will mean only sunny intervals and the possibility of isolated showers. The zero-degree level will be around 2600 to 2800 m. Winds will mostly be light.
The danger of dry avalanches will decrease. The danger of wet avalanches will increase over the course of each day. Off-piste skiing and hut ascents should be completed in good time.
"}], "validTime": {"endTime": "2026-04-14T15:00:00Z", "startTime": "2026-04-13T15:00:00Z"}, "bulletinID": "31996b40-eafe-4938-98d3-ef3e8ae965a0", "customData": {"CH": {"aggregation": [{"title": "Dry avalanches", "category": "dry", "problemTypes": ["wind_slab", "persistent_weak_layers"], "validTimePeriod": "all_day"}, {"title": "Wet-snow avalanches", "category": "wet", "problemTypes": ["wet_snow"], "validTimePeriod": "all_day"}]}}, "nextUpdate": "2026-04-14T15:00:00Z", "unscheduled": false, "dangerRatings": [{"mainValue": "considerable", "customData": {"CH": {"subdivision": "minus"}}, "validTimePeriod": "all_day"}], "weatherReview": {"comment": "Overnight to Monday, precipitation set in in the south, which became somewhat heavier as the day progressed. However, the precipitation was markedly lighter than expected. The snowfall level was around 2000 m.
From Sunday evening to Monday afternoon above approximately 2400 m:
At midday at 2000 m, around +2 \u00b0C in the west and south and +4 \u00b0C in the east
Mostly moderate south to southeasterly at high altitudes, strong at times
"}, "publicationTime": "2026-04-13T15:00:00Z", "weatherForecast": {"comment": "There will be some widespread precipitation during the night. As the day progresses conditions will become increasingly sunny in Valais and in the south, while the north will be mostly cloudy. In the east in particular, light precipitation will continue until the afternoon. The snowfall level will be around 1600 to 2000 m, falling to 1200 m in the Jura.
From Monday afternoon to Tuesday afternoon above approximately 2200 m:
At midday at 2000 m, between 0 \u00b0C in the north and +4 \u00b0C in the south
Light to moderate northeasterly
"}, "avalancheProblems": [{"aspects": ["N", "NE", "E", "W", "NW"], "comment": "As a consequence of new snow and southerly wind, sometimes avalanche prone wind slabs formed at elevated altitudes. Single winter sport participants can release avalanches. In some places dry avalanches can also be released in the old snowpack and reach large size.With the mild weather, partly overcast nights and rain in places, moistening of the snowpack continued over the course of the last week. On south-facing slopes the snowpack is water-saturated up to around 3000 m, and on east- and west-facing slopes up to 2500 to 2700 m, while on north-facing slopes it is water-saturated below 2000 m, with moistening progressing between 2000 and 2400 m.
In the south, fresh and drifted snow at high altitudes is prone to triggering, especially on shady slopes. Avalanches can also in some cases still be triggered by human activity in faceted weak layers in the old snowpack. Such danger zones are generally located at altitudes where the snowpack is becoming moist for the first time. In central Valais and in Grisons in particular, such avalanches can in some cases entrain the entire snowpack, especially on slopes with light snow cover.
"}}}