New and drifted snow are overlaid on an old snowpack, the top section of which contains coarse-grained weak layers, primarily on north- and east-facing slopes at high altitudes.
" }, "source": { "provider": { "name": "SLF", "website": "https://whiterisk.ch/en/conditions" } }, "tendency": [ { "comment": "In the north, it will be very cloudy, with snow falling above approximately 1300 m. The heaviest snowfall will occur along the northern Alpine ridge from the Bernese Oberland to the S\u00e4ntis, with approximately 20 cm expected.
In the south it will be sunny with northerly winds.
There will be a widespread increase in avalanche risk. In Upper Valais and Ticino, it will not change significantly.
After a mostly clear night, it will be sunny. Winds will be light. The zero-degree level will rise to 2100 m in the north and 2500 m in the south.
The danger of dry avalanches will decrease. As a consequence of solar radiation, near-surface wet avalanches are to be expected as the day progresses.
" } ], "unscheduled": false, "validTime": { "startTime": "2026-05-14T15:00:00+00:00", "endTime": "2026-05-15T15:00:00+00:00" }, "weatherForecast": { "comment": "It will be mostly cloudy, with snow falling above approximately 1300 m.
From Ascension Day to Friday afternoon, the following amounts of snow will fall above approximately 1800 m:
At midday at 2000 m, around -2 \u00b0C
Mainly light
" }, "weatherReview": { "comment": "Conditions were mostly very cloudy. Snow fell at times above approximately 1500 m. There were brief sunny spells in between, with longer sunny periods in Valais.
Up until Ascension Day afternoon, the following amounts of snow fell above approximately 2000 m:
At midday at 2000 m, between -2 \u00b0C in the north and +2 \u00b0C in the south
Moderate, sometimes strong from the west along the Prealps
" } }, { "avalancheProblems": [ { "customData": { "CH": { "subdivision": "minus", "coreZoneText": "Danger level \"considerable\" (3-) in northwest to northeast to southeast facing aspects above 2600m." } }, "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "SE", "NW" ], "comment": "The wind slabs of the last few days are in some cases prone to triggering. They will be covered with new snow and therefore barely recognisable. Dry avalanches can additionally be released in the old snowpack in particular on very steep north and east facing slopes. Avalanches can reach large size in isolated cases. Ski touring calls for defensive route selection.New and drifted snow are overlaid on an old snowpack, the top section of which contains coarse-grained weak layers, primarily on north- and east-facing slopes at high altitudes.
" }, "source": { "provider": { "name": "SLF", "website": "https://whiterisk.ch/en/conditions" } }, "tendency": [ { "comment": "In the north, it will be very cloudy, with snow falling above approximately 1300 m. The heaviest snowfall will occur along the northern Alpine ridge from the Bernese Oberland to the S\u00e4ntis, with approximately 20 cm expected.
In the south it will be sunny with northerly winds.
There will be a widespread increase in avalanche risk. In Upper Valais and Ticino, it will not change significantly.
After a mostly clear night, it will be sunny. Winds will be light. The zero-degree level will rise to 2100 m in the north and 2500 m in the south.
The danger of dry avalanches will decrease. As a consequence of solar radiation, near-surface wet avalanches are to be expected as the day progresses.
" } ], "unscheduled": false, "validTime": { "startTime": "2026-05-14T15:00:00+00:00", "endTime": "2026-05-15T15:00:00+00:00" }, "weatherForecast": { "comment": "It will be mostly cloudy, with snow falling above approximately 1300 m.
From Ascension Day to Friday afternoon, the following amounts of snow will fall above approximately 1800 m:
At midday at 2000 m, around -2 \u00b0C
Mainly light
" }, "weatherReview": { "comment": "Conditions were mostly very cloudy. Snow fell at times above approximately 1500 m. There were brief sunny spells in between, with longer sunny periods in Valais.
Up until Ascension Day afternoon, the following amounts of snow fell above approximately 2000 m:
At midday at 2000 m, between -2 \u00b0C in the north and +2 \u00b0C in the south
Moderate, sometimes strong from the west along the Prealps
" } }, { "avalancheProblems": [ { "customData": { "CH": { "subdivision": "plus", "coreZoneText": "Danger level \"moderate\" (2+) in northwest to northeast to east facing aspects above 2400m." } }, "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "NW" ], "comment": "The wind slabs of the last few days are in some cases prone to triggering. They will be covered with new snow and therefore barely recognisable. Additionally avalanches can also be released in near-surface layers and reach medium size. These avalanche prone locations are rather rare but are barely recognisable. Careful route selection is recommended.New and drifted snow are overlaid on an old snowpack, the top section of which contains coarse-grained weak layers, primarily on north- and east-facing slopes at high altitudes.
" }, "source": { "provider": { "name": "SLF", "website": "https://whiterisk.ch/en/conditions" } }, "tendency": [ { "comment": "In the north, it will be very cloudy, with snow falling above approximately 1300 m. The heaviest snowfall will occur along the northern Alpine ridge from the Bernese Oberland to the S\u00e4ntis, with approximately 20 cm expected.
In the south it will be sunny with northerly winds.
There will be a widespread increase in avalanche risk. In Upper Valais and Ticino, it will not change significantly.
After a mostly clear night, it will be sunny. Winds will be light. The zero-degree level will rise to 2100 m in the north and 2500 m in the south.
The danger of dry avalanches will decrease. As a consequence of solar radiation, near-surface wet avalanches are to be expected as the day progresses.
" } ], "unscheduled": false, "validTime": { "startTime": "2026-05-14T15:00:00+00:00", "endTime": "2026-05-15T15:00:00+00:00" }, "weatherForecast": { "comment": "It will be mostly cloudy, with snow falling above approximately 1300 m.
From Ascension Day to Friday afternoon, the following amounts of snow will fall above approximately 1800 m:
At midday at 2000 m, around -2 \u00b0C
Mainly light
" }, "weatherReview": { "comment": "Conditions were mostly very cloudy. Snow fell at times above approximately 1500 m. There were brief sunny spells in between, with longer sunny periods in Valais.
Up until Ascension Day afternoon, the following amounts of snow fell above approximately 2000 m:
At midday at 2000 m, between -2 \u00b0C in the north and +2 \u00b0C in the south
Moderate, sometimes strong from the west along the Prealps
" } }, { "avalancheProblems": [ { "customData": { "CH": { "subdivision": "neutral", "coreZoneText": "Danger level \"moderate\" (2=) in northwest to northeast to southeast facing aspects above 2000m." } }, "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "SE", "NW" ], "comment": "As a consequence of new snow and a sometimes strong westerly wind, avalanche prone wind slabs formed on Ascension Day in particular in gullies and bowls and behind abrupt changes in the terrain. These will be covered with new snow and therefore barely recognisable. Persons can release avalanches in some places. These can reach medium size. Careful route selection is recommended.New and drifted snow are overlaid on an old snowpack, the top section of which contains coarse-grained weak layers, primarily on north- and east-facing slopes at high altitudes.
" }, "source": { "provider": { "name": "SLF", "website": "https://whiterisk.ch/en/conditions" } }, "tendency": [ { "comment": "In the north, it will be very cloudy, with snow falling above approximately 1300 m. The heaviest snowfall will occur along the northern Alpine ridge from the Bernese Oberland to the S\u00e4ntis, with approximately 20 cm expected.
In the south it will be sunny with northerly winds.
There will be a widespread increase in avalanche risk. In Upper Valais and Ticino, it will not change significantly.
After a mostly clear night, it will be sunny. Winds will be light. The zero-degree level will rise to 2100 m in the north and 2500 m in the south.
The danger of dry avalanches will decrease. As a consequence of solar radiation, near-surface wet avalanches are to be expected as the day progresses.
" } ], "unscheduled": false, "validTime": { "startTime": "2026-05-14T15:00:00+00:00", "endTime": "2026-05-15T15:00:00+00:00" }, "weatherForecast": { "comment": "It will be mostly cloudy, with snow falling above approximately 1300 m.
From Ascension Day to Friday afternoon, the following amounts of snow will fall above approximately 1800 m:
At midday at 2000 m, around -2 \u00b0C
Mainly light
" }, "weatherReview": { "comment": "Conditions were mostly very cloudy. Snow fell at times above approximately 1500 m. There were brief sunny spells in between, with longer sunny periods in Valais.
Up until Ascension Day afternoon, the following amounts of snow fell above approximately 2000 m:
At midday at 2000 m, between -2 \u00b0C in the north and +2 \u00b0C in the south
Moderate, sometimes strong from the west along the Prealps
" } }, { "avalancheProblems": [ { "customData": { "CH": { "subdivision": "neutral", "coreZoneText": "Danger level \"moderate\" (2=) in northwest to northeast to southeast facing aspects above 2600m." } }, "problemType": "wind_slab", "aspects": [ "N", "NE", "E", "SE", "NW" ], "comment": "Somewhat older wind slabs are to be found in particular at the base of rock walls and behind abrupt changes in the terrain. These are rather small but in some cases prone to triggering. They are to be evaluated with care and prudence in very steep terrain. Apart from the danger of being buried, restraint should be exercised as well in view of the danger of avalanches sweeping people along and giving rise to falls.New and drifted snow are overlaid on an old snowpack, the top section of which contains coarse-grained weak layers, primarily on north- and east-facing slopes at high altitudes.
" }, "source": { "provider": { "name": "SLF", "website": "https://whiterisk.ch/en/conditions" } }, "tendency": [ { "comment": "In the north, it will be very cloudy, with snow falling above approximately 1300 m. The heaviest snowfall will occur along the northern Alpine ridge from the Bernese Oberland to the S\u00e4ntis, with approximately 20 cm expected.
In the south it will be sunny with northerly winds.
There will be a widespread increase in avalanche risk. In Upper Valais and Ticino, it will not change significantly.
After a mostly clear night, it will be sunny. Winds will be light. The zero-degree level will rise to 2100 m in the north and 2500 m in the south.
The danger of dry avalanches will decrease. As a consequence of solar radiation, near-surface wet avalanches are to be expected as the day progresses.
" } ], "unscheduled": false, "validTime": { "startTime": "2026-05-14T15:00:00+00:00", "endTime": "2026-05-15T15:00:00+00:00" }, "weatherForecast": { "comment": "It will be mostly cloudy, with snow falling above approximately 1300 m.
From Ascension Day to Friday afternoon, the following amounts of snow will fall above approximately 1800 m:
At midday at 2000 m, around -2 \u00b0C
Mainly light
" }, "weatherReview": { "comment": "Conditions were mostly very cloudy. Snow fell at times above approximately 1500 m. There were brief sunny spells in between, with longer sunny periods in Valais.
Up until Ascension Day afternoon, the following amounts of snow fell above approximately 2000 m:
At midday at 2000 m, between -2 \u00b0C in the north and +2 \u00b0C in the south
Moderate, sometimes strong from the west along the Prealps
" } } ], "customData": { "CH": { "base": "227ebdf2-ccc4-456b-b5ae-e84fd902da5e:194" } } }