On Tuesday and Wednesday there will be low stratus cloud in the north with only occasional sunny spells due to the broken, higher altitude cloud cover. Most of the sunshine will be in the east with a slight tendency towards foehn winds. Conditions will be mainly cloudy on both days on the southern flank of the Alps. A few centimetres of snow may fall above approximately 1400 m on Wednesday. There will be a light to moderate southerly wind on both days.
Avalanche risk will continue to fall. Avalanches, possibly large, may still be triggered in the old snowpack, especially on steep shady slopes at high altitudes. Gliding avalanches are still possible in regions with deep snow in the west and north.
"}], "validTime": {"endTime": "2025-12-01T16:00:00Z", "startTime": "2025-11-30T16:00:00Z"}, "bulletinID": "69d0fc53-3148-4558-b66a-394fd58b9e53", "customData": {"CH": {"aggregation": [{"category": "dry", "problemTypes": ["persistent_weak_layers"], "validTimePeriod": "all_day"}]}}, "nextUpdate": "2025-12-01T16:00:00Z", "unscheduled": false, "dangerRatings": [{"mainValue": "moderate", "customData": {"CH": {"subdivision": "plus"}}, "validTimePeriod": "all_day"}], "weatherReview": {"comment": "Conditions were cloudy but mostly dry on Sunday
-
At midday at 2000 m in the east around +1\u00b0C
Winds were mostly light and occasionally moderate from the south.
"}, "publicationTime": "2025-11-30T15:53:05.336661275Z", "weatherForecast": {"comment": "There will be little snowfall overnight to Monday, except in the very south. The snowfall level will drop from 1500 m to 800 m. Some clouds will remain along the Prealps and in the east during the day. Conditions will be sunny in the west and generally at high altitude. Clouds will gather in the south as the day progresses.
From Sunday afternoon to Monday morning above approximately 1600 m:
At midday at 2000 m, around -2\u00b0C
Mostly light from southerly directions
"}, "avalancheProblems": [{"aspects": ["N", "NE", "E", "SE", "SW", "W", "NW"], "comment": "Weak layers in the old snowpack represent the main danger. Avalanches can be triggered in the weakly bonded old snow. Mostly they are medium-sized. Caution is to be exercised in particular on steep shady slopes above approximately 2400 m. Isolated whumpfing sounds can indicate the danger.Snow depths are above average in the west and north, where there is a widespread 150 to 200% of the usual amount of snow. In other regions, there is a widespread 50 to 100%, of the usual amount of snow and less than 50% on the southern flank of the Alps.
Especially on shady slopes above approximately 2400 m and generally in the high Alpine regions, there are faceted, long-lasting weak layers deep in the old snowpack. In many places in western and northern regions with heavy snow, these layers are overlaid with deep fresh snow and so can no longer be easily triggered by winter sport participants. However, any avalanches that are triggered in these deep layers can still become large, as has been clear from the avalanches in recent days. In regions with little fresh snow, avalanches can more easily be triggered in deep layers of old snow and will usually be of medium size.
Small to medium gliding avalanches are still to be expected in the west and north.
"}}}