link Link to website https://avalanche.report/bulletin/2021-04-30 simple_link Link to the simplified website https://avalanche.report/simple/2021-04-30/en.html fd_albina_map.jpg Danger rating map (whole day) https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/fd_albina_map.jpg fd_tyrol_map.jpg Danger rating map Tirol (whole day) https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/fd_tyrol_map.jpg fd_southtyrol_map.jpg Danger rating map Southtyrol (whole day) https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/fd_southtyrol_map.jpg fd_trentino_map.jpg Danger rating map Trentino (whole day) https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/fd_trentino_map.jpg pdf PDF https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/2021-04-30_en.pdf tyrol_pdf PDF Tirol https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/2021-04-30_AT-07_en.pdf southtyrol_pdf PDF Southtyrol https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/2021-04-30_IT-32-BZ_en.pdf trentino_pdf PDF Trentino https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/2021-04-30_IT-32-TN_en.pdf fd_overlay.png Danger rating overlay (whole day) https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/fd_overlay.png fd_regions.json GeoJSON for regions (whole day) https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/fd_regions.json dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/5008f3a0-35b8-4f5d-8f15-426647320190.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-30?region=5008f3a0-35b8-4f5d-8f15-426647320190 2021-04-29T15:00:00Z 2021-04-29T22:00:00Z 2021-04-30T22:00:00Z Avalanche.report https://avalanche.report Sexten Dolomites Val Müstair Alps Western Verwall Mountains Langtaufers Eastern Verwall Mountains Schnals Ridge Silvretta Southern Stubai Alps Samnaun Mountains Southern Zillertal Alps and High Tauern Northern Oetz and Stubai Alps Saldurn-Mastaun Ridge Western Tuxer Alps Texel Mountains Eastern Tuxer Alps Sarntal Alps Western Kitzbühel Alps Western Pfunderer Mountains Glockturm Range Eastern Pfunderer Mountains Durreck Range Weißkugel Range Western Rieserferner Mountains Gurgler Range Western Deferegger Alps Central Stubai Alps Ortler Range Northern Zillertal Alps Allgäu Alps Ulten Valley Venediger Range Eastern Lechtal Alps - Ammergau Alps Mieming Mountains Eastern Rieserferner Mountains Northern Dolomites of Fiemme Karwendel Mountains Glockner Range Gröden Dolomites Eastern Deferegger Alps Prags Dolomites Schober Mountains Lienzer Dolomites Western Lechtal Alps Central Lechtal Alps Grieskogel Mountains moderate 2600 no_rating no_rating considerable 2600 no_rating no_rating dp3 dp6 wet_snow W N SW NW SE E NE S 2600 considerable considerable 3 2 3 wind_drifted_snow N NW NE 2600 moderate moderate 2 2 2 persistent_weak_layers N NW NE 2600 low low 2 2 1 steady 2021-04-30T22:00:00Z 2021-05-01T22:00:00Z Increase in danger of wet avalanches as a consequence of the rain. High Alpine regions: Fresh wind slabs require caution. The danger of wet avalanches will already be elevated in the early morning. Wet and gliding avalanches are to be expected as a consequence of the rain. Wet avalanches can be triggered in deep layers and reach quite a large size. This applies in particular on steep shady slopes. Additionally in some places wet avalanches can also be triggered in near-surface layers. This applies in all aspects below approximately 2600 m. <br/> <br/> In high Alpine regions sometimes easily released wind slabs will form. The avalanche prone locations are to be found in particular on extremely steep shady slopes. Caution is to be exercised adjacent to ridgelines, and in areas where the snow cover is rather shallow. <br/> Backcountry touring calls for meticulous route selection. Outgoing longwave radiation during the night will be severely restricted over a wide area. In its middle, the snowpack is wet and its surface has a melt-freeze crust that is barely capable of bearing a load. Over a wide area rain to 2200 m. The rain will give rise to a loss of strength within the snowpack. <br/> <br/> In some regions up to 20 cm of snow will fall above approximately 2200 m. In the south less snow will fall. The moist fresh snow and the wind slabs formed by the moderate to strong southwesterly wind are lying on top of a weakly bonded old snowpack in particular on very steep shady slopes. This applies especially above approximately 2600 m, and in areas where the snow cover is rather shallow. <br/> <br/> At low and intermediate altitudes only a little snow is lying, especially on sunny slopes. At high altitudes and in high Alpine regions there is still a very large amount of snow. The danger of wet avalanches will persist. Fresh wind slabs at high altitude. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/b4f5dee4-cf4a-4dd4-a7e2-44eae5eb8a01.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-30?region=b4f5dee4-cf4a-4dd4-a7e2-44eae5eb8a01 2021-04-29T15:00:00Z 2021-04-29T22:00:00Z 2021-04-30T22:00:00Z Avalanche.report https://avalanche.report Latemar Southern Adamello Primiero - Pale di S. Martino Adamello - Presanella Northern Brenta - Peller Western Nonsberg Alps Southern Brenta Fassa Valley Sole, Pejo and Rabbi Southern Lagorai Northern Lagorai Maddalene Paganella Pine' - Mocheni Valley moderate 2600 no_rating no_rating moderate 2600 no_rating no_rating dp3 dp6 wet_snow W N SW NW SE E NE S 2600 moderate moderate 2 2 3 wind_drifted_snow N NW NE 2600 moderate moderate 2 2 2 persistent_weak_layers N NW NE 2600 low low 2 2 1 increasing 2021-04-30T22:00:00Z 2021-05-01T22:00:00Z Increase in danger of wet avalanches as a consequence of the rain. High Alpine regions: Fresh wind slabs require caution. The danger of wet avalanches will already be elevated in the early morning. Wet and gliding avalanches are to be expected as a consequence of the rain. Wet avalanches can be triggered in deep layers and reach medium size. This applies in particular on steep shady slopes, as well as in areas where the snow cover is rather shallow. Additionally in some places wet avalanches can also be triggered in near-surface layers. This applies in all aspects below approximately 2600 m. <br/> <br/> In high Alpine regions mostly small wind slabs will form. The avalanche prone locations are to be found in particular on extremely steep shady slopes. Caution is to be exercised adjacent to ridgelines, and in areas where the snow cover is rather shallow. Outgoing longwave radiation during the night will be severely restricted over a wide area. In its middle, the snowpack is wet and its surface has a melt-freeze crust that is barely capable of bearing a load. Over a wide area rain to 2200 m. The rain will give rise to a loss of strength within the snowpack. <br/> <br/> In some regions up to 10 cm of snow will fall above approximately 2200 m. In the south less snow will fall. The moist fresh snow and the mostly small wind slabs formed by the moderate to strong southwesterly wind are lying on top of a weakly bonded old snowpack in particular on very steep shady slopes. This applies especially above approximately 2600 m, and in areas where the snow cover is rather shallow. <br/> <br/> At low and intermediate altitudes only a little snow is lying, especially on sunny slopes. The danger of wet avalanches will increase. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/1231fb25-8570-4eca-8add-bed63519dcf7.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-30?region=1231fb25-8570-4eca-8add-bed63519dcf7 2021-04-29T15:00:00Z 2021-04-29T22:00:00Z 2021-04-30T22:00:00Z Avalanche.report https://avalanche.report Brandenberg Alps Wilder Kaiser Mountains - Waidring Alps Eastern Kitzbühel Alps moderate no_rating no_rating dp10 dp3 wet_snow W N SW NW SE E NE S moderate moderate 2 3 2 steady 2021-04-30T22:00:00Z 2021-05-01T22:00:00Z Wet loose snow avalanches are the main danger. The weather conditions will give rise to rapid softening of the snowpack, caution is to be exercised on extremely steep slopes. Wet loose snow avalanches are possible, but they will be mostly small, this applies even in case of a small load. Outgoing longwave radiation during the night will be severely restricted. The surface of the snowpack will already be soft in the early morning. <br/> <br/> At low altitude only a little snow is lying. The danger of wet avalanches will persist. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-30/2021-04-29_15-00-00/bd55fd87-1e85-4600-bb59-d16ad13e7f7f.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-30?region=bd55fd87-1e85-4600-bb59-d16ad13e7f7f 2021-04-29T15:00:00Z 2021-04-29T22:00:00Z 2021-04-30T22:00:00Z Avalanche.report https://avalanche.report Prealps Cembra Valley Bondone and Stivo Vallarsa Folgaria - Laverone Ledro Valley Eastern Nonsberger Alps Marzola - Valsugana moderate no_rating no_rating dp3 dp10 wet_snow W N SW NW SE E NE S moderate moderate 2 2 2 steady 2021-04-30T22:00:00Z 2021-05-01T22:00:00Z In some localities increase in danger of wet avalanches as a consequence of the rain. The weather conditions will give rise to rapid softening of the snowpack. Already in the late morning small and medium-sized wet avalanches are possible. As the day progresses as a consequence of the rain there will be an increase in the danger of wet avalanches. Wet avalanches can in some places be released in near-surface layers by a single winter sport participant, also on shady slopes. <br/> Outgoing longwave radiation during the night will be barely evident. The surface of the snowpack will already be soft in the early morning. In some regions rain to above 2200 m. The rain will give rise to a loss of strength within the snowpack. <br/> At low altitude from a snow sport perspective, insufficient snow is lying. Outgoing longwave radiation during the night will be reduced. The danger of wet avalanches will increase a little during the day.