{"type": "Feature", "geometry": null, "properties": {"lang": "en", "regions": [{"name": "Martigny-Verbier", "regionID": "CH-4115"}, {"name": "Turtmanntal", "regionID": "CH-4212"}, {"name": "Val d'Anniviers", "regionID": "CH-4124"}, {"name": "Mountet", "regionID": "CH-4125"}, {"name": "Val d'H\u00e9rens", "regionID": "CH-4122"}, {"name": "Haut Val de Bagnes", "regionID": "CH-4116"}, {"name": "Arolla", "regionID": "CH-4123"}], "tendency": [{"comment": "<h1>Outlook to Thursday</h1><p>On Wednesday it will be sunny. On Thursday it will be sunny at times in the west and mostly sunny in the east. Winds will mainly be light.</p><p>The avalanche danger will continue to decrease slowly. Weak layers in the old snowpack will remain prone to triggering, especially in the inneralpine regions.</p>"}], "validTime": {"endTime": "2026-01-20T16:00:00Z", "startTime": "2026-01-20T07:00:00Z"}, "bulletinID": "c6e4cd38-5b8a-4c7c-a92d-c4a63fcf2bc6", "customData": {"CH": {"aggregation": [{"category": "dry", "problemTypes": ["persistent_weak_layers"], "validTimePeriod": "all_day"}]}}, "nextUpdate": "2026-01-20T16:00:00Z", "unscheduled": false, "dangerRatings": [{"mainValue": "considerable", "customData": {"CH": {"subdivision": "neutral"}}, "validTimePeriod": "all_day"}], "weatherReview": {"comment": "<h1>Weather review for Monday</h1><p>It was mostly cloudy in the south and some snow fell at times on the southern flank of the Alps above approximately 1200 m. In the north, it was quite sunny with foehn winds.</p><h2 contenteditable=\"false\">Fresh snow</h2><p>A few centimetres in the southern Simplon region and in Valle Maggia</p><h2>Temperature</h2><p>At midday at 2000 m, between +2 \u00b0C in the north and -3 \u00b0C in the south</p><h2>Wind</h2><p>From southeast to south, easing</p><ul><li>Moderate foehn wind in the north</li><li>Elsewhere mostly light to moderate.</li></ul>"}, "publicationTime": "2026-01-20T07:00:00Z", "weatherForecast": {"comment": "<h1>Weather forecast to Tuesday</h1><p>In Ticino and southern Grisons, it will be mostly overcast with some snow at times. Elsewhere it will be mostly sunny.</p><h2 contenteditable=\"false\">Fresh snow</h2><p>Southern Simplon region, Ticino and southern Grisons: up to 5 cm</p><h2 contenteditable=\"false\">Temperature</h2><p>At midday at 2000 m, around 0 \u00b0C in the north and -4 \u00b0C in the south</p><h2>Wind</h2><p>Moderate to strong southerly foehn wind in the north, light to moderate elsewhere</p>"}, "avalancheProblems": [{"aspects": ["N", "NE", "E", "W", "NW"], "comment": "Avalanches can be released in the old snowpack and reach dangerously large size. Remotely triggered avalanches are possible. The avalanche prone locations are quite prevalent. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack can indicate the danger. Backcountry touring and other off-piste activities call for experience in the assessment of avalanche danger and restraint.", "elevation": {"lowerBound": "2200"}, "customData": {"CH": {"subdivision": "neutral", "coreZoneText": "Danger level \"considerable\" (3=) in west to north to east facing aspects above 2200m."}}, "problemType": "persistent_weak_layers", "validTimePeriod": "all_day", "dangerRatingValue": "considerable"}], "snowpackStructure": {"comment": "<h1>Snowpack</h1><p>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 the weekend was deposited on top of an equally weak snowpack.&nbsp;</p><p>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 isolated cases in the old snowpack on the northern flank of the Alps. Remote triggering, sometimes over long distances, is still possible.</p>"}}}