link Link to website https://avalanche.report/bulletin/2021-04-21 simple_link Link to the simplified website https://avalanche.report/simple/2021-04-21/en.html fd_albina_map.jpg Danger rating map (whole day) https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_albina_map.jpg fd_tyrol_map.jpg Danger rating map Tirol (whole day) https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_tyrol_map.jpg fd_southtyrol_map.jpg Danger rating map Southtyrol (whole day) https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_southtyrol_map.jpg fd_trentino_map.jpg Danger rating map Trentino (whole day) https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_trentino_map.jpg pdf PDF https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/2021-04-21_en.pdf tyrol_pdf PDF Tirol https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/2021-04-21_AT-07_en.pdf southtyrol_pdf PDF Southtyrol https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/2021-04-21_IT-32-BZ_en.pdf trentino_pdf PDF Trentino https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/2021-04-21_IT-32-TN_en.pdf fd_overlay.png Danger rating overlay (whole day) https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_overlay.png fd_regions.json GeoJSON for regions (whole day) https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_regions.json dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/03bc5d53-1bd4-4825-8dad-689a9a062804.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-21?region=03bc5d53-1bd4-4825-8dad-689a9a062804 2021-04-20T15:00:00Z 2021-04-20T22:00:00Z 2021-04-21T22:00:00Z Avalanche.report https://avalanche.report Western Tuxer Alps Karwendel Mountains Eastern Tuxer Alps Grieskogel Mountains Central Stubai Alps Northern Zillertal Alps Northern Oetz and Stubai Alps Mieming Mountains considerable 2200 no_rating no_rating low 2200 no_rating no_rating dp4 persistent_weak_layers W N SW NW SE E NE S 2200 considerable considerable 3 3 2 wind_drifted_snow N NW NE 2200 moderate moderate 2 3 2 steady 2021-04-21T22:00:00Z 2021-04-22T22:00:00Z Weak layers in the upper part of the snowpack can be released in particular on very steep shady slopes. Avalanche prone weak layers exist in the top section of the snowpack in all aspects, in particular above approximately 2200 m. Avalanches can in isolated cases be released by small loads and reach large size in isolated cases. Isolated whumpfing sounds can indicate the danger. The avalanche prone locations are to be found on steep slopes of all aspects. Natural avalanches are possible in isolated cases, in particular on very steep shady slopes between approximately 2200 and 2600 m. <br/> <br/> Fresh and older wind slabs can only be released in isolated cases. The avalanche prone locations are to be found in particular in northwest to north to northeast facing aspects above approximately 2200 m, also adjacent to ridgelines in all aspects at high altitudes and in high Alpine regions. West of the Ötztaler Ache the avalanche situation is more favourable. As a consequence of warming during the day and solar radiation moist loose snow avalanches are possible as the day progresses, in particular on rocky sunny slopes. Especially steep sunny slopes above approximately 2200 m: Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a crust. The snowpack will be prone to triggering in some places, in particular on wind-loaded slopes. <br/> The fresh snow of last week as well as the wind slabs are lying on top of a weakly bonded old snowpack in particular on shady slopes. <br/> Outgoing longwave radiation during the night was quite good. Some snow will fall in the afternoon in some localities. In particular in the north in some localities up to 10 cm of snow will fall above approximately 1300 m. Slight increase in avalanche danger as a consequence of the sometimes moderate westerly wind, in particular at high altitude. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/7c8bb76c-5d62-46ee-b48d-c77eadd1a0c5.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-21?region=7c8bb76c-5d62-46ee-b48d-c77eadd1a0c5 2021-04-20T15:00:00Z 2021-04-20T22:00:00Z 2021-04-21T22:00:00Z Avalanche.report https://avalanche.report Western Lechtal Alps Central Lechtal Alps Western Verwall Mountains Eastern Verwall Mountains Allgäu Alps Silvretta Samnaun Mountains Eastern Lechtal Alps - Ammergau Alps moderate 2200 no_rating no_rating low 2200 no_rating no_rating dp4 persistent_weak_layers W N SW NW SE E NE S 2200 moderate moderate 2 3 2 wind_drifted_snow N NW NE 2200 moderate moderate 2 3 2 steady 2021-04-21T22:00:00Z 2021-04-22T22:00:00Z Weak layers in the upper part of the snowpack can still be released in some places. Old wind slabs adjacent to ridgelines. Avalanche prone weak layers exist in the top section of the snowpack in all aspects, in particular above approximately 2200 m. Avalanches can in isolated cases be released by small loads and reach medium size. The avalanche prone locations are to be found in particular on steep east to south to west facing slopes, in isolated cases also on steep, rather lightly snow-covered shady slopes. Isolated whumpfing sounds can indicate the danger. <br/> <br/> The somewhat older wind slabs can only be released in isolated cases. The avalanche prone locations are to be found in particular in northwest to north to northeast facing aspects above approximately 2200 m, also adjacent to ridgelines in all aspects at high altitudes and in high Alpine regions. As a consequence of warming during the day and solar radiation moist loose snow avalanches are possible. This applies in particular on rocky sunny slopes. Especially steep sunny slopes above approximately 2200 m: Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a crust. The snowpack will be prone to triggering in some places, in particular on wind-loaded slopes. <br/> The fresh snow of last week as well as the wind slabs are lying on soft layers in particular on shady slopes. <br/> Outgoing longwave radiation during the night was quite good. Some snow will fall in some localities. Slight increase in danger of moist and wet avalanches as a consequence of warming during the day and solar radiation. This also applies at high altitude. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/d57c9062-44e9-4029-bc7d-15c7b74be70e.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-21?region=d57c9062-44e9-4029-bc7d-15c7b74be70e 2021-04-20T15:00:00Z 2021-04-20T22:00:00Z 2021-04-21T22:00:00Z Avalanche.report https://avalanche.report Sexten Dolomites Latemar Val Müstair Alps Langtaufers Schnals Ridge Southern Stubai Alps Southern Zillertal Alps and High Tauern Saldurn-Mastaun Ridge Texel Mountains Southern Adamello Sarntal Alps Adamello - Presanella Western Pfunderer Mountains Northern Brenta - Peller Glockturm Range Southern Brenta Northern Lagorai Maddalene Eastern Pfunderer Mountains Durreck Range Weißkugel Range Western Rieserferner Mountains Gurgler Range Western Deferegger Alps Ortler Range Ulten Valley Venediger Range Eastern Nonsberger Alps Eastern Rieserferner Mountains Northern Dolomites of Fiemme Glockner Range Gröden Dolomites Primiero - Pale di S. Martino Eastern Deferegger Alps Prags Dolomites Schober Mountains Lienzer Dolomites Western Nonsberg Alps Fassa Valley Sole, Pejo and Rabbi moderate 2200 no_rating no_rating low 2200 no_rating no_rating dp4 persistent_weak_layers W N SW NW SE E NE S 2200 moderate moderate 2 3 2 wind_drifted_snow N NW E NE 2200 moderate moderate 2 3 2 wet_snow W SW SE E S 2400 low low 1 1 steady 2021-04-21T22:00:00Z 2021-04-22T22:00:00Z Old wind slabs in particular adjacent to ridgelines. As a consequence of warming during the day and solar radiation small to medium-sized gliding avalanches and moist snow slides are possible. Avalanche prone weak layers exist in the top section of the snowpack in all aspects, in particular above approximately 2200 m. Avalanches can in isolated cases be released by small loads and reach medium size. The avalanche prone locations are to be found in particular on steep east to south to west facing slopes, in isolated cases also on steep, rather lightly snow-covered shady slopes. Isolated whumpfing sounds can indicate the danger. <br/> <br/> Fresh and older wind slabs can only be released in isolated cases. The avalanche prone locations are to be found in particular in northwest to north to northeast facing aspects above approximately 2200 m, also adjacent to ridgelines in all aspects at high altitudes and in high Alpine regions. As a consequence of warming during the day and solar radiation moist loose snow avalanches are possible. This applies in particular on rocky sunny slopes. Especially steep sunny slopes above approximately 2200 m: Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a crust. The snowpack will be prone to triggering in some places, in particular on wind-loaded slopes. <br/> The fresh snow of last week as well as the wind slabs are lying on soft layers in particular on shady slopes. <br/> Outgoing longwave radiation during the night will be quite good at times. Slight increase in danger of moist and wet avalanches as a consequence of warming during the day and solar radiation. This also applies at high altitude. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/4a9c86d0-bb7a-40b9-99bd-bbccca5e737c.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-21?region=4a9c86d0-bb7a-40b9-99bd-bbccca5e737c 2021-04-20T15:00:00Z 2021-04-20T22:00:00Z 2021-04-21T22:00:00Z Avalanche.report https://avalanche.report Prealps Cembra Valley Bondone and Stivo Vallarsa Folgaria - Laverone Southern Lagorai Ledro Valley Paganella Marzola - Valsugana Pine' - Mocheni Valley moderate treeline no_rating no_rating low treeline no_rating no_rating dp10 wet_snow W N SW NW SE E NE S treeline moderate moderate 1 2 wind_drifted_snow N NW E NE 2000 moderate moderate 3 2 1 steady 2021-04-21T22:00:00Z 2021-04-22T22:00:00Z Old wind slabs adjacent to ridgelines. As a consequence of warming during the day and solar radiation small to medium-sized gliding avalanches and moist snow slides are possible. Wind slabs are mostly rather small but to be assessed with care and prudence. Avalanches can in isolated cases be released by small loads or triggered naturally. The avalanche prone locations are to be found in particular adjacent to ridgelines and in gullies and bowls in all aspects. <br/> Slight increase in avalanche danger as a consequence of warming during the day and solar radiation. On very steep sunny slopes individual loose snow avalanches are to be expected from the late morning, but they will be mostly small. In addition a latent danger of gliding avalanches exists. The old snowpack will be generally well bonded. Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a crust. <br/> The fresh snow of last week and the wind slabs are lying on soft layers in particular on shady slopes. The various wind slabs have bonded quite well already together. <br/> Outgoing longwave radiation during the night will be barely evident over a wide area. The weather conditions will give rise to increasing moistening of the snowpack. Slight increase in danger of moist and wet avalanches as a consequence of warming during the day and solar radiation. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/b018cab2-dcdc-41ae-b7d8-ca639b9a34a2.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-21?region=b018cab2-dcdc-41ae-b7d8-ca639b9a34a2 2021-04-20T15:00:00Z 2021-04-20T22:00:00Z 2021-04-21T22:00:00Z Avalanche.report https://avalanche.report Brandenberg Alps Western Kitzbühel Alps Wilder Kaiser Mountains - Waidring Alps Eastern Kitzbühel Alps moderate 2200 no_rating no_rating low 2200 no_rating no_rating dp4 persistent_weak_layers W N SW NW SE E NE S 2200 moderate moderate 2 3 2 wind_drifted_snow N NW NE 2200 moderate moderate 2 3 2 steady 2021-04-21T22:00:00Z 2021-04-22T22:00:00Z Weak layers in the upper part of the snowpack can still be released in some places. Old wind slabs adjacent to ridgelines. Avalanche prone weak layers exist in the top section of the snowpack in all aspects, in particular above approximately 2200 m. Avalanches can in isolated cases be released by small loads and reach medium size. The avalanche prone locations are to be found in particular on steep east to south to west facing slopes, in isolated cases also on steep, rather lightly snow-covered shady slopes. Isolated whumpfing sounds can indicate the danger. <br/> <br/> The somewhat older wind slabs can only be released in isolated cases. The avalanche prone locations are to be found in particular in northwest to north to northeast facing aspects above approximately 2200 m, also adjacent to ridgelines in all aspects at high altitudes and in high Alpine regions. As a consequence of warming during the day and solar radiation moist loose snow avalanches are possible. This applies in particular on rocky sunny slopes. Especially steep sunny slopes above approximately 2200 m: Towards its surface, the snowpack is unfavourably layered and its surface consists of loosely bonded snow lying on a crust. The snowpack will be prone to triggering in some places, in particular on wind-loaded slopes. <br/> The fresh snow of last week as well as the wind slabs are lying on soft layers in particular on shady slopes. <br/> Outgoing longwave radiation during the night was quite good. Some snow will fall in the afternoon in particular in the north. Slight increase in avalanche danger as a consequence of the sometimes moderate westerly wind, in particular at high altitude.