[ { "regions": [ { "regionID": "CH-5211" }, { "regionID": "CH-5214" }, { "regionID": "CH-2134" }, { "regionID": "CH-7113" }, { "regionID": "CH-2133" }, { "regionID": "CH-3211" }, { "regionID": "CH-2132" }, { "regionID": "CH-5215" }, { "regionID": "CH-7114" }, { "regionID": "CH-7115" }, { "regionID": "CH-1234" }, { "regionID": "CH-1233" }, { "regionID": "CH-1232" }, { "regionID": "CH-3311" }, { "regionID": "CH-1231" }, { "regionID": "CH-4241" }, { "regionID": "CH-1121" }, { "regionID": "CH-5112" }, { "regionID": "CH-5113" }, { "regionID": "CH-5111" }, { "regionID": "CH-4243" }, { "regionID": "CH-1225" }, { "regionID": "CH-7231" }, { "regionID": "CH-1224" }, { "regionID": "CH-1223" }, { "regionID": "CH-1222" }, { "regionID": "CH-3112" }, { "regionID": "CH-1228" }, { "regionID": "CH-3113" }, { "regionID": "CH-1227" }, { "regionID": "CH-1226" }, { "regionID": "CH-3111" }, { "regionID": "CH-3114" }, { "regionID": "CH-1221" }, { "regionID": "CH-4211" }, { "regionID": "CH-5121" }, { "regionID": "CH-4213" }, { "regionID": "CH-5122" }, { "regionID": "CH-5123" }, { "regionID": "CH-5124" }, { "regionID": "CH-1113" }, { "regionID": "CH-1112" }, { "regionID": "CH-1114" }, { "regionID": "CH-4111" }, { "regionID": "CH-2111" }, { "regionID": "CH-4114" }, { "regionID": "CH-1311" }, { "regionID": "CH-1312" }, { "regionID": "CH-2212" }, { "regionID": "CH-5222" }, { "regionID": "CH-2211" }, { "regionID": "CH-1213" }, { "regionID": "CH-5221" }, { "regionID": "CH-2124" }, { "regionID": "CH-3224" }, { "regionID": "CH-4121" }, { "regionID": "CH-2121" }, { "regionID": "CH-3221" }, { "regionID": "CH-2123" }, { "regionID": "CH-3223" }, { "regionID": "CH-2122" }, { "regionID": "CH-3222" }, { "regionID": "CH-7126" }, { "regionID": "CH-7125" }, { "regionID": "CH-7124" }, { "regionID": "CH-1247" }, { "regionID": "CH-7123" }, { "regionID": "CH-1246" }, { "regionID": "CH-7122" }, { "regionID": "CH-1245" }, { "regionID": "CH-2223" }, { "regionID": "CH-7121" }, { "regionID": "CH-1244" }, { "regionID": "CH-1243" }, { "regionID": "CH-2221" }, { "regionID": "CH-1242" }, { "regionID": "CH-2222" }, { "regionID": "CH-1241" }, { "regionID": "CH-5234" }, { "regionID": "CH-5231" }, { "regionID": "CH-5232" } ], "validTime": { "startTime": "2021-05-01T17:00:00+02:00", "endTime": "2021-05-02T17:00:00+02:00" }, "source": {}, "dangerRatings": [ { "elevation": {}, "customData": [], "mainValue": "considerable", "aspect": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ] } ], "avalancheProblems": [], "tendency": { "validTime": {}, "tendencyComment": "Monday: On Sunday night the precipitation will come to an end from the west. During the daytime on Monday, it will be quite sunny. \n The danger of dry-snow avalanches is expected to recede somewhat. As a result of daytime warming and solar radiation the danger of wet-snow avalanches will increase during the course of the day. \nTuesday: Following a night of partially clear skies, it will be predominantly overcast during the daytime hours. In the afternoon a small amount of snowfall is anticipated above 1600 to 1800 m. Strong-velocity westerly winds are expected to arise. \n The danger of dry-snow avalanches is not expected to change significantly. The danger of wet-snow avalanches will increase somewhat during the course of the day." }, "publicationTime": "2021-05-01T17:00:00+02:00", "avalancheActivityHighlights": "Considerable danger of dry and wet avalanches will be encountered over a wide area", "snowpackStructureComment": "As a result of fresh snow and winds, snowdrift accumulations are increasing significantly at heightened altitudes. \n Beneath the freshly generated drifts, the snowpack on east-facing, south-facing and west-facing slopes is thoroughly wet below approximately 3000 m. On north-facing slopes the snowpack between 2200 m and 2400 m became thoroughly moist for the first time during the last few days, and was thereby weakened. In particular in Grisons, where the snowpack evidences marked weak layers, even large-sized slab avalanches have been observed in this altitude band.", "wxSynopsisComment": "During the night there were repeated bouts of precipitation, however also bright intervals in some places in the northern regions. During the morning hours in the furthermost eastern regions there were sunny spells. In the other regions of Switzerland skies were heavily overcast, accompanied by precipitation in the southern and western regions more than anywhere else. During the afternoon the precipitation extended increasingly to the other regions of Switzerland. \nFresh snow: The snowfall level in the northwestern regions lay at approximately 1700 m, in the other regions of Switzerland between 2000 and 2400 m. Between Friday afternoon and Saturday afternoon, the following amounts of fresh snow were registered: - central sector of the southern flank of the Alps: 20 to 40 cm;\n - elsewhere 5 to 15 cm over widespread areas; in northern Grisons and the Lower Engadine it remained dry.\n \n \nTemperature: At midday at 2000 m in the northwestern regions at 0 \u00b0C, in the other regions of Switzerland at +3 \u00b0C. \nWind: - During the nocturnal hours in the western regions, westerly winds were blowing temporarily at moderate strength;\n - in the other regions of Switzerland winds were blowing at light-to-moderate strength. During the daytime hours, strong-velocity southerly winds in some places.\nIn the early part of the night, intensive precipitation is anticipated over widespread areas. Subsequently the precipitation will come to an end in the southern regions. During the daytime in the Valais and in the southern regions, bright intervals are anticipated, in the northern and the eastern regions skies will remain heavily overcast accompanied by precipitation, although the intensity will slacken off significantly. \nFresh snow: The snowfall level will descend from approximately 2000 m down to 1000 to 1400 m in the northern regions and to approximately 1600 m in the southern regions. Between Saturday afternoon and Sunday afternoon, the following amounts of fresh snow are expected: - northern flank of the Alps, Ticino, Grisons: 20 to 40 cm;\n - Valais: 10 to 20 cm.\n \n \nTemperature: At midday at 2000 m, between -2 \u00b0C in the northern regions and +2 \u00b0C in the southern regions. \nWind: - Winds in the early part of the night will by southerly, then shift to northerly;\n - subsequently, winds will be blowing at moderate strength. To some extent, a strong-velocity northerly wind will be blowing in the southern regions and on the Main Alpine Ridge.", "bulletinID": "8948538", "avalancheActivityComment": "The fresh snow and the sometimes large wind slabs that are being formed by the wind are in some cases prone to triggering. Avalanches can in some places be released by people. They can in many cases reach medium size. Backcountry touring calls for experience in the assessment of avalanche danger. Considerable danger of wet avalanches will prevail. During the night medium-sized and, in isolated cases, large wet avalanches are to be expected below approximately 2400 m, especially on steep north facing slopes. As a consequence of falling temperatures, the avalanche activity will gradually decrease." }, { "regions": [ { "regionID": "CH-4224" }, { "regionID": "CH-4116" }, { "regionID": "CH-4223" }, { "regionID": "CH-4115" }, { "regionID": "CH-4231" }, { "regionID": "CH-4222" }, { "regionID": "CH-4212" }, { "regionID": "CH-4221" }, { "regionID": "CH-4232" }, { "regionID": "CH-4112" }, { "regionID": "CH-4125" }, { "regionID": "CH-4215" }, { "regionID": "CH-4124" }, { "regionID": "CH-4214" }, { "regionID": "CH-4123" }, { "regionID": "CH-4225" }, { "regionID": "CH-4113" }, { "regionID": "CH-4122" } ], "validTime": { "startTime": "2021-05-01T17:00:00+02:00", "endTime": "2021-05-02T17:00:00+02:00" }, "source": {}, "dangerRatings": [ { "elevation": {}, "customData": [], "mainValue": "considerable", "aspect": [] } ], "avalancheProblems": [], "tendency": { "validTime": {}, "tendencyComment": "Monday: On Sunday night the precipitation will come to an end from the west. During the daytime on Monday, it will be quite sunny. \n The danger of dry-snow avalanches is expected to recede somewhat. As a result of daytime warming and solar radiation the danger of wet-snow avalanches will increase during the course of the day. \nTuesday: Following a night of partially clear skies, it will be predominantly overcast during the daytime hours. In the afternoon a small amount of snowfall is anticipated above 1600 to 1800 m. Strong-velocity westerly winds are expected to arise. \n The danger of dry-snow avalanches is not expected to change significantly. The danger of wet-snow avalanches will increase somewhat during the course of the day." }, "publicationTime": "2021-05-01T17:00:00+02:00", "avalancheActivityHighlights": "Considerable danger of dry and wet avalanches will be encountered over a wide area", "snowpackStructureComment": "As a result of fresh snow and winds, snowdrift accumulations are increasing significantly at heightened altitudes. \n Beneath the freshly generated drifts, the snowpack on east-facing, south-facing and west-facing slopes is thoroughly wet below approximately 3000 m. On north-facing slopes the snowpack between 2200 m and 2400 m became thoroughly moist for the first time during the last few days, and was thereby weakened. In particular in Grisons, where the snowpack evidences marked weak layers, even large-sized slab avalanches have been observed in this altitude band.", "wxSynopsisComment": "During the night there were repeated bouts of precipitation, however also bright intervals in some places in the northern regions. During the morning hours in the furthermost eastern regions there were sunny spells. In the other regions of Switzerland skies were heavily overcast, accompanied by precipitation in the southern and western regions more than anywhere else. During the afternoon the precipitation extended increasingly to the other regions of Switzerland. \nFresh snow: The snowfall level in the northwestern regions lay at approximately 1700 m, in the other regions of Switzerland between 2000 and 2400 m. Between Friday afternoon and Saturday afternoon, the following amounts of fresh snow were registered: - central sector of the southern flank of the Alps: 20 to 40 cm;\n - elsewhere 5 to 15 cm over widespread areas; in northern Grisons and the Lower Engadine it remained dry.\n \n \nTemperature: At midday at 2000 m in the northwestern regions at 0 \u00b0C, in the other regions of Switzerland at +3 \u00b0C. \nWind: - During the nocturnal hours in the western regions, westerly winds were blowing temporarily at moderate strength;\n - in the other regions of Switzerland winds were blowing at light-to-moderate strength. During the daytime hours, strong-velocity southerly winds in some places.\nIn the early part of the night, intensive precipitation is anticipated over widespread areas. Subsequently the precipitation will come to an end in the southern regions. During the daytime in the Valais and in the southern regions, bright intervals are anticipated, in the northern and the eastern regions skies will remain heavily overcast accompanied by precipitation, although the intensity will slacken off significantly. \nFresh snow: The snowfall level will descend from approximately 2000 m down to 1000 to 1400 m in the northern regions and to approximately 1600 m in the southern regions. Between Saturday afternoon and Sunday afternoon, the following amounts of fresh snow are expected: - northern flank of the Alps, Ticino, Grisons: 20 to 40 cm;\n - Valais: 10 to 20 cm.\n \n \nTemperature: At midday at 2000 m, between -2 \u00b0C in the northern regions and +2 \u00b0C in the southern regions. \nWind: - Winds in the early part of the night will by southerly, then shift to northerly;\n - subsequently, winds will be blowing at moderate strength. To some extent, a strong-velocity northerly wind will be blowing in the southern regions and on the Main Alpine Ridge.", "bulletinID": "8948539", "avalancheActivityComment": "During the night medium-sized and, in isolated cases, large wet avalanches are to be expected below approximately 2400 m, especially on steep north facing slopes. As a consequence of falling temperatures, the avalanche activity will gradually decrease. The fresh wind slabs are in some cases prone to triggering. Single persons can release avalanches, including medium-sized ones. This applies in particular in high Alpine regions. Backcountry touring calls for careful route selection." }, { "regions": [ { "regionID": "CH-4242" }, { "regionID": "CH-5212" }, { "regionID": "CH-4244" }, { "regionID": "CH-7112" }, { "regionID": "CH-7111" }, { "regionID": "CH-5216" }, { "regionID": "CH-7222" }, { "regionID": "CH-7221" }, { "regionID": "CH-7211" }, { "regionID": "CH-2224" }, { "regionID": "CH-6113" }, { "regionID": "CH-5223" }, { "regionID": "CH-6114" }, { "regionID": "CH-6211" }, { "regionID": "CH-5233" }, { "regionID": "CH-6115" }, { "regionID": "CH-6122" }, { "regionID": "CH-6212" }, { "regionID": "CH-6111" }, { "regionID": "CH-6121" }, { "regionID": "CH-6112" } ], "validTime": { "startTime": "2021-05-01T17:00:00+02:00", "endTime": "2021-05-02T17:00:00+02:00" }, "source": {}, "dangerRatings": [ { "elevation": {}, "customData": [], "mainValue": "considerable", "aspect": [ "N", "NE", "E", "SE", "S", "SW", "W", "NW" ] } ], "avalancheProblems": [], "tendency": { "validTime": {}, "tendencyComment": "Monday: On Sunday night the precipitation will come to an end from the west. During the daytime on Monday, it will be quite sunny. \n The danger of dry-snow avalanches is expected to recede somewhat. As a result of daytime warming and solar radiation the danger of wet-snow avalanches will increase during the course of the day. \nTuesday: Following a night of partially clear skies, it will be predominantly overcast during the daytime hours. In the afternoon a small amount of snowfall is anticipated above 1600 to 1800 m. Strong-velocity westerly winds are expected to arise. \n The danger of dry-snow avalanches is not expected to change significantly. The danger of wet-snow avalanches will increase somewhat during the course of the day." }, "publicationTime": "2021-05-01T17:00:00+02:00", "avalancheActivityHighlights": "Considerable danger of dry and wet avalanches will be encountered over a wide area", "snowpackStructureComment": "As a result of fresh snow and winds, snowdrift accumulations are increasing significantly at heightened altitudes. \n Beneath the freshly generated drifts, the snowpack on east-facing, south-facing and west-facing slopes is thoroughly wet below approximately 3000 m. On north-facing slopes the snowpack between 2200 m and 2400 m became thoroughly moist for the first time during the last few days, and was thereby weakened. In particular in Grisons, where the snowpack evidences marked weak layers, even large-sized slab avalanches have been observed in this altitude band.", "wxSynopsisComment": "During the night there were repeated bouts of precipitation, however also bright intervals in some places in the northern regions. During the morning hours in the furthermost eastern regions there were sunny spells. In the other regions of Switzerland skies were heavily overcast, accompanied by precipitation in the southern and western regions more than anywhere else. During the afternoon the precipitation extended increasingly to the other regions of Switzerland. \nFresh snow: The snowfall level in the northwestern regions lay at approximately 1700 m, in the other regions of Switzerland between 2000 and 2400 m. Between Friday afternoon and Saturday afternoon, the following amounts of fresh snow were registered: - central sector of the southern flank of the Alps: 20 to 40 cm;\n - elsewhere 5 to 15 cm over widespread areas; in northern Grisons and the Lower Engadine it remained dry.\n \n \nTemperature: At midday at 2000 m in the northwestern regions at 0 \u00b0C, in the other regions of Switzerland at +3 \u00b0C. \nWind: - During the nocturnal hours in the western regions, westerly winds were blowing temporarily at moderate strength;\n - in the other regions of Switzerland winds were blowing at light-to-moderate strength. During the daytime hours, strong-velocity southerly winds in some places.\nIn the early part of the night, intensive precipitation is anticipated over widespread areas. Subsequently the precipitation will come to an end in the southern regions. During the daytime in the Valais and in the southern regions, bright intervals are anticipated, in the northern and the eastern regions skies will remain heavily overcast accompanied by precipitation, although the intensity will slacken off significantly. \nFresh snow: The snowfall level will descend from approximately 2000 m down to 1000 to 1400 m in the northern regions and to approximately 1600 m in the southern regions. Between Saturday afternoon and Sunday afternoon, the following amounts of fresh snow are expected: - northern flank of the Alps, Ticino, Grisons: 20 to 40 cm;\n - Valais: 10 to 20 cm.\n \n \nTemperature: At midday at 2000 m, between -2 \u00b0C in the northern regions and +2 \u00b0C in the southern regions. \nWind: - Winds in the early part of the night will by southerly, then shift to northerly;\n - subsequently, winds will be blowing at moderate strength. To some extent, a strong-velocity northerly wind will be blowing in the southern regions and on the Main Alpine Ridge.", "bulletinID": "8948537", "avalancheActivityComment": "The large quantity of fresh snow and the sometimes large wind slabs that are being formed by the strong wind are prone to triggering. More natural avalanches are possible until late in the night. Winter sport participants can release avalanches easily, including large ones. Backcountry touring calls for experience in the assessment of avalanche danger and careful route selection. Considerable danger of wet avalanches will prevail. During the night occasionally large wet avalanches are to be expected below approximately 2400 m, especially on steep north facing slopes. Exposed parts of transportation routes can be endangered occasionally. \n As a consequence of warming during the day and solar radiation numerous medium-sized moist loose snow avalanches are to be expected above approximately 2200 m." }, { "regions": [ { "regionID": "CH-1122" }, { "regionID": "CH-1111" }, { "regionID": "CH-6131" }, { "regionID": "CH-6132" }, { "regionID": "CH-2131" }, { "regionID": "CH-2112" }, { "regionID": "CH-1211" }, { "regionID": "CH-1212" } ], "validTime": { "startTime": "2021-05-01T17:00:00+02:00", "endTime": "2021-05-02T17:00:00+02:00" }, "source": {}, "dangerRatings": [ { "elevation": {}, "customData": [], "mainValue": "low", "aspect": [] } ], "avalancheProblems": [], "tendency": { "validTime": {}, "tendencyComment": "Monday: On Sunday night the precipitation will come to an end from the west. During the daytime on Monday, it will be quite sunny. \n The danger of dry-snow avalanches is expected to recede somewhat. As a result of daytime warming and solar radiation the danger of wet-snow avalanches will increase during the course of the day. \nTuesday: Following a night of partially clear skies, it will be predominantly overcast during the daytime hours. In the afternoon a small amount of snowfall is anticipated above 1600 to 1800 m. Strong-velocity westerly winds are expected to arise. \n The danger of dry-snow avalanches is not expected to change significantly. The danger of wet-snow avalanches will increase somewhat during the course of the day." }, "publicationTime": "2021-05-01T17:00:00+02:00", "avalancheActivityHighlights": "Considerable danger of dry and wet avalanches will be encountered over a wide area", "snowpackStructureComment": "As a result of fresh snow and winds, snowdrift accumulations are increasing significantly at heightened altitudes. \n Beneath the freshly generated drifts, the snowpack on east-facing, south-facing and west-facing slopes is thoroughly wet below approximately 3000 m. On north-facing slopes the snowpack between 2200 m and 2400 m became thoroughly moist for the first time during the last few days, and was thereby weakened. In particular in Grisons, where the snowpack evidences marked weak layers, even large-sized slab avalanches have been observed in this altitude band.", "wxSynopsisComment": "During the night there were repeated bouts of precipitation, however also bright intervals in some places in the northern regions. During the morning hours in the furthermost eastern regions there were sunny spells. In the other regions of Switzerland skies were heavily overcast, accompanied by precipitation in the southern and western regions more than anywhere else. During the afternoon the precipitation extended increasingly to the other regions of Switzerland. \nFresh snow: The snowfall level in the northwestern regions lay at approximately 1700 m, in the other regions of Switzerland between 2000 and 2400 m. Between Friday afternoon and Saturday afternoon, the following amounts of fresh snow were registered: - central sector of the southern flank of the Alps: 20 to 40 cm;\n - elsewhere 5 to 15 cm over widespread areas; in northern Grisons and the Lower Engadine it remained dry.\n \n \nTemperature: At midday at 2000 m in the northwestern regions at 0 \u00b0C, in the other regions of Switzerland at +3 \u00b0C. \nWind: - During the nocturnal hours in the western regions, westerly winds were blowing temporarily at moderate strength;\n - in the other regions of Switzerland winds were blowing at light-to-moderate strength. During the daytime hours, strong-velocity southerly winds in some places.\nIn the early part of the night, intensive precipitation is anticipated over widespread areas. Subsequently the precipitation will come to an end in the southern regions. During the daytime in the Valais and in the southern regions, bright intervals are anticipated, in the northern and the eastern regions skies will remain heavily overcast accompanied by precipitation, although the intensity will slacken off significantly. \nFresh snow: The snowfall level will descend from approximately 2000 m down to 1000 to 1400 m in the northern regions and to approximately 1600 m in the southern regions. Between Saturday afternoon and Sunday afternoon, the following amounts of fresh snow are expected: - northern flank of the Alps, Ticino, Grisons: 20 to 40 cm;\n - Valais: 10 to 20 cm.\n \n \nTemperature: At midday at 2000 m, between -2 \u00b0C in the northern regions and +2 \u00b0C in the southern regions. \nWind: - Winds in the early part of the night will by southerly, then shift to northerly;\n - subsequently, winds will be blowing at moderate strength. To some extent, a strong-velocity northerly wind will be blowing in the southern regions and on the Main Alpine Ridge.", "bulletinID": "8948536", "avalancheActivityComment": "Only a little snow is lying. On north facing slopes gliding avalanches and moist snow slides are possible." } ]