On Tuesday it will still be partly cloudy but dry in the south, and mainly sunny elsewhere. It will be sunny everywhere in the mountains on Wednesday. The southerly wind will slowly subside.
The avalanche danger will continue to decrease but only slowly. Weak layers in the old snowpack will remain prone to triggering, especially in the inneralpine regions.
"}], "validTime": {"endTime": "2026-01-19T16:00:00Z", "startTime": "2026-01-19T07:00:00Z"}, "bulletinID": "8439b44e-39a8-481d-8c57-55b95e689a97", "customData": {"CH": {"aggregation": [{"category": "dry", "problemTypes": ["new_snow", "persistent_weak_layers"], "validTimePeriod": "all_day"}]}}, "nextUpdate": "2026-01-19T16:00:00Z", "unscheduled": false, "dangerRatings": [{"mainValue": "considerable", "customData": {"CH": {"subdivision": "neutral"}}, "validTimePeriod": "all_day"}], "weatherReview": {"comment": "It was mostly cloudy in the west and south. On the southern flank of the Alps, snow fell at times above approximately 1400 m. In the north and east, it was quite sunny with foehn winds.
From Saturday afternoon to Sunday afternoon, the following amounts of snow fell above approximately 1500 m:
At midday at 2000 m, between +3 \u00b0C in the north and -2 \u00b0C in the south
From south-east to south
In Ticino and southern Grisons, it will be mostly overcast with some snow at times. Elsewhere it will be mostly sunny.
Southern Simplon region, Ticino and southern Grisons: up to 5 cm
At midday at 2000 m, around 0 \u00b0C in the north and -4 \u00b0C in the south
Moderate to strong southerly foehn wind in the north, elsewhere light to moderate
"}, "avalancheProblems": [{"aspects": ["N", "NE", "E", "SE", "SW", "W", "NW"], "comment": "The new snow and wind slabs of the last few days are lying on top of a weakly bonded old snowpack. Avalanches can be released in the old snowpack and reach large size in isolated cases. Backcountry touring calls for experience in the assessment of avalanche danger.", "elevation": {"lowerBound": "2000"}, "customData": {"CH": {"subdivision": "neutral", "coreZoneText": "Danger level \"considerable\" (3=) in southwest to north to southeast facing aspects above 2000m."}}, "problemType": "new_snow", "validTimePeriod": "all_day", "dangerRatingValue": "considerable"}, {"aspects": ["N", "NE", "E", "SE", "SW", "W", "NW"], "comment": "The new snow and wind slabs of the last few days are lying on top of a weakly bonded old snowpack. Avalanches can be released in the old snowpack and reach large size in isolated cases. Backcountry touring calls for experience in the assessment of avalanche danger.", "elevation": {"lowerBound": "2000"}, "customData": {"CH": {"subdivision": "neutral", "coreZoneText": "Danger level \"considerable\" (3=) in southwest to north to southeast facing aspects above 2000m."}}, "problemType": "persistent_weak_layers", "validTimePeriod": "all_day", "dangerRatingValue": "considerable"}], "snowpackStructure": {"comment": "New snow and drifted snow from the past week is lying on pronounced weak layers, especially on wind-protected shady slopes. South of a line from the Rh\u00f4ne to the Rhine, the entire snowpack is often faceted and loose. In addition, with the strong southerly winds at times, some highly visible, prone-to-triggering wind slabs have formed over the past three days. On the southern flank of the Alps, the fresh snow from Friday and Saturday was deposited on top of an equally weak snowpack.
It is possible for medium and large-sized avalanches to be triggered in the old snowpack over a wide area. The snowpack on northern and eastern slopes in Valais and northern Grisons is particularly prone to triggering. Avalanches may also be triggered in the old snowpack on the northern flank of the Alps. Remote triggering, sometimes over long distances, is still possible.
"}}}