{"type": "Feature", "geometry": null, "properties": {"lang": "en", "regions": [{"name": "unteres Puschlav", "regionID": "CH-7222"}, {"name": "Corvatsch", "regionID": "CH-7111"}, {"name": "Zermatt", "regionID": "CH-4222"}, {"name": "Bergell", "regionID": "CH-7211"}, {"name": "Riederalp", "regionID": "CH-4214"}, {"name": "untere Vispert\u00e4ler", "regionID": "CH-4221"}, {"name": "untere Leventina", "regionID": "CH-6115"}, {"name": "Bleniotal", "regionID": "CH-6113"}, {"name": "Rheinwald", "regionID": "CH-5223"}, {"name": "Bernina", "regionID": "CH-7112"}, {"name": "Val d'Entremont-Val Ferret", "regionID": "CH-4113"}, {"name": "Bivio", "regionID": "CH-5234"}, {"name": "basso Moesano", "regionID": "CH-6212"}, {"name": "Riviera", "regionID": "CH-6122"}, {"name": "Reckingen", "regionID": "CH-4241"}, {"name": "alto Moesano", "regionID": "CH-6211"}, {"name": "Avers", "regionID": "CH-5233"}, {"name": "Monte Rosa", "regionID": "CH-4224"}, {"name": "Arolla", "regionID": "CH-4123"}, {"name": "oberes Puschlav", "regionID": "CH-7221"}, {"name": "s\u00fcdliches Tujetsch", "regionID": "CH-5212"}, {"name": "n\u00f6rdliches Obergoms", "regionID": "CH-4243"}, {"name": "Mountet", "regionID": "CH-4125"}, {"name": "s\u00fcdliches Urseren", "regionID": "CH-2224"}, {"name": "Haut Val de Bagnes", "regionID": "CH-4116"}, {"name": "untere Maggiat\u00e4ler", "regionID": "CH-6121"}], "tendency": [{"comment": "<h1>Outlook to Thursday</h1><p>It will be sunny in the mountains on both days. On Wednesday, there will still be moderate northerly winds at times, with southwesterly winds developing on Thursday.</p><p>There will be hardly any change in avalanche risk.</p>"}], "validTime": {"endTime": "2025-12-30T16:00:00Z", "startTime": "2025-12-30T07:00:00Z"}, "bulletinID": "49914117-835c-4bb1-9d01-e837a8d75515", "customData": {"CH": {"aggregation": [{"category": "dry", "problemTypes": ["wind_slab", "persistent_weak_layers"], "validTimePeriod": "all_day"}]}}, "nextUpdate": "2025-12-30T16:00:00Z", "unscheduled": false, "dangerRatings": [{"mainValue": "moderate", "customData": {"CH": {"subdivision": "neutral"}}, "validTimePeriod": "all_day"}], "weatherReview": {"comment": "<h1>Weather review for Monday</h1><p>After a clear night, conditions were sunny and very mild in the mountains.</p><h2 contenteditable=\"false\">Fresh snow</h2><p>-</p><h2>Temperature</h2><p>At midday at 2000 m, around +6 \u00b0C</p><h2>Wind</h2><p>Light to moderate south to southwesterly</p>"}, "publicationTime": "2025-12-30T06:43:57.489180255Z", "weatherForecast": {"comment": "<h1>Weather forecast to Tuesday</h1><p>In central and eastern Switzerland, the low stratus cloud will advance down into the Alpine valleys. It will be sunny above 1500 to 1800 m and in the west and south.</p><h2 contenteditable=\"false\">Fresh snow</h2><p>-</p><h2 contenteditable=\"false\">Temperature</h2><p>At midday at 2000 m, between -8 \u00b0C in the east, -2 \u00b0C in the west and +1 \u00b0C in the south.</p><h2>Wind</h2><p>Often moderate, increasingly strong from the north on the Main Alpine Ridge and to the south of there</p>"}, "avalancheProblems": [{"aspects": ["N", "NE", "E", "SE", "S", "SW", "W", "NW"], "comment": "As a consequence of a sometimes strong northerly wind, avalanche prone wind slabs will form. Avalanches can additionally in isolated cases be released in the weakly bonded old snow also. These can reach medium size. Isolated whumpfing sounds can indicate the danger. <br/> Careful route selection is recommended.", "elevation": {"lowerBound": "2400"}, "customData": {"CH": {"subdivision": "neutral", "coreZoneText": "Danger level \"moderate\" (2=) in all aspects above 2400m."}}, "problemType": "wind_slab", "validTimePeriod": "all_day", "dangerRatingValue": "moderate"}, {"aspects": ["N", "NE", "E", "SE", "S", "SW", "W", "NW"], "comment": "As a consequence of a sometimes strong northerly wind, avalanche prone wind slabs will form. Avalanches can additionally in isolated cases be released in the weakly bonded old snow also. These can reach medium size. Isolated whumpfing sounds can indicate the danger. <br/> Careful route selection is recommended.", "elevation": {"lowerBound": "2400"}, "customData": {"CH": {"subdivision": "neutral", "coreZoneText": "Danger level \"moderate\" (2=) in all aspects above 2400m."}}, "problemType": "persistent_weak_layers", "validTimePeriod": "all_day", "dangerRatingValue": "moderate"}], "snowpackStructure": {"comment": "<h1>Snowpack</h1><p>There is appreciably less snow than usual at this time of year in most regions and snow conditions for ski touring are very poor in many places, especially below 2000 m and generally in the east.</p><p>Snowpack structure is variable from region to region:</p><ul><li>On the Main Alpine Ridge in Valais and on the central southern flank of the Alps, last week\u2019s fresh and drifted snow has been deposited on a thin but weak old snowpack of faceted crystals. A few avalanches, some large, have been triggered by human activity over the last few days. Isolated avalanches may still be triggered in the old snowpack in these regions.</li><li>In central Valais, northern Upper Valais and throughout Grisons, weak layers of faceted crystals or surface hoar are present in the snowpack on shady slopes above approximately 2400 m. However, avalanches have only rarely been triggered in these layers. Smaller snowdrift accumulations from the last few days are still sometimes prone to triggering. On wind-protected shady slopes, the surface of the snowpack is faceted and loose.</li><li>Snowpack structure is more favourable in the westernmost and northern parts of Lower Valais and on the northern flank of the Alps. Small snowdrift accumulations have formed locally. Below 2400 m, the snowpack has mostly frozen solid.</li></ul>"}}}