linkLink to websitehttps://avalanche.report/bulletin/2021-04-21simple_linkLink to the simplified websitehttps://avalanche.report/simple/2021-04-21/en.htmlfd_albina_map.jpgDanger rating map (whole day)https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_albina_map.jpgfd_tyrol_map.jpgDanger rating map Tirol (whole day)https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_tyrol_map.jpgfd_southtyrol_map.jpgDanger rating map Southtyrol (whole day)https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_southtyrol_map.jpgfd_trentino_map.jpgDanger rating map Trentino (whole day)https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_trentino_map.jpgpdfPDF https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/2021-04-21_en.pdftyrol_pdfPDF Tirolhttps://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/2021-04-21_AT-07_en.pdfsouthtyrol_pdfPDF Southtyrolhttps://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/2021-04-21_IT-32-BZ_en.pdftrentino_pdfPDF Trentinohttps://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/2021-04-21_IT-32-TN_en.pdffd_overlay.pngDanger rating overlay (whole day)https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_overlay.pngfd_regions.jsonGeoJSON for regions (whole day)https://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/fd_regions.jsondangerRatingMapSimplified danger rating map of the regionhttps://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/03bc5d53-1bd4-4825-8dad-689a9a062804.jpgwebsiteLink to region on the websitehttps://avalanche.report/bulletin/2021-04-21?region=03bc5d53-1bd4-4825-8dad-689a9a0628042021-04-20T15:00:00Z2021-04-20T22:00:00Z2021-04-21T22:00:00ZWestern Tuxer AlpsKarwendel MountainsEastern Tuxer AlpsGrieskogel MountainsCentral Stubai AlpsNorthern Zillertal AlpsNorthern Oetz and Stubai AlpsMieming Mountainsconsiderable2200no_ratingno_ratinglow2200no_ratingno_ratingdp4persistent_weak_layersWNSWNWSEENES2200considerableconsiderable332wind_drifted_snowNNWNE2200moderatemoderate232steady2021-04-21T22:00:00Z2021-04-22T22:00:00ZWeak 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.dangerRatingMapSimplified danger rating map of the regionhttps://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/7c8bb76c-5d62-46ee-b48d-c77eadd1a0c5.jpgwebsiteLink to region on the websitehttps://avalanche.report/bulletin/2021-04-21?region=7c8bb76c-5d62-46ee-b48d-c77eadd1a0c52021-04-20T15:00:00Z2021-04-20T22:00:00Z2021-04-21T22:00:00ZWestern Lechtal AlpsCentral Lechtal AlpsWestern Verwall MountainsEastern Verwall MountainsAllgäu AlpsSilvrettaSamnaun MountainsEastern Lechtal Alps - Ammergau Alpsmoderate2200no_ratingno_ratinglow2200no_ratingno_ratingdp4persistent_weak_layersWNSWNWSEENES2200moderatemoderate232wind_drifted_snowNNWNE2200moderatemoderate232steady2021-04-21T22:00:00Z2021-04-22T22:00:00ZWeak 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.dangerRatingMapSimplified danger rating map of the regionhttps://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/d57c9062-44e9-4029-bc7d-15c7b74be70e.jpgwebsiteLink to region on the websitehttps://avalanche.report/bulletin/2021-04-21?region=d57c9062-44e9-4029-bc7d-15c7b74be70e2021-04-20T15:00:00Z2021-04-20T22:00:00Z2021-04-21T22:00:00ZSexten DolomitesLatemarVal Müstair AlpsLangtaufersSchnals RidgeSouthern Stubai AlpsSouthern Zillertal Alps and High TauernSaldurn-Mastaun RidgeTexel MountainsSouthern AdamelloSarntal AlpsAdamello - PresanellaWestern Pfunderer MountainsNorthern Brenta - PellerGlockturm RangeSouthern BrentaNorthern LagoraiMaddaleneEastern Pfunderer MountainsDurreck RangeWeißkugel RangeWestern Rieserferner MountainsGurgler RangeWestern Deferegger AlpsOrtler RangeUlten ValleyVenediger RangeEastern Nonsberger AlpsEastern Rieserferner MountainsNorthern Dolomites of FiemmeGlockner RangeGröden DolomitesPrimiero - Pale di S. MartinoEastern Deferegger AlpsPrags DolomitesSchober MountainsLienzer DolomitesWestern Nonsberg AlpsFassa ValleySole, Pejo and Rabbimoderate2200no_ratingno_ratinglow2200no_ratingno_ratingdp4persistent_weak_layersWNSWNWSEENES2200moderatemoderate232wind_drifted_snowNNWENE2200moderatemoderate232wet_snowWSWSEES2400lowlow11steady2021-04-21T22:00:00Z2021-04-22T22:00:00ZOld 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.dangerRatingMapSimplified danger rating map of the regionhttps://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/4a9c86d0-bb7a-40b9-99bd-bbccca5e737c.jpgwebsiteLink to region on the websitehttps://avalanche.report/bulletin/2021-04-21?region=4a9c86d0-bb7a-40b9-99bd-bbccca5e737c2021-04-20T15:00:00Z2021-04-20T22:00:00Z2021-04-21T22:00:00ZPrealpsCembra ValleyBondone and StivoVallarsaFolgaria - LaveroneSouthern LagoraiLedro ValleyPaganellaMarzola - ValsuganaPine' - Mocheni Valleymoderatetreelineno_ratingno_ratinglowtreelineno_ratingno_ratingdp10wet_snowWNSWNWSEENEStreelinemoderatemoderate12wind_drifted_snowNNWENE2000moderatemoderate321steady2021-04-21T22:00:00Z2021-04-22T22:00:00ZOld 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.dangerRatingMapSimplified danger rating map of the regionhttps://avalanche.report/albina_files/2021-04-21/2021-04-20_15-00-00/b018cab2-dcdc-41ae-b7d8-ca639b9a34a2.jpgwebsiteLink to region on the websitehttps://avalanche.report/bulletin/2021-04-21?region=b018cab2-dcdc-41ae-b7d8-ca639b9a34a22021-04-20T15:00:00Z2021-04-20T22:00:00Z2021-04-21T22:00:00ZBrandenberg AlpsWestern Kitzbühel AlpsWilder Kaiser Mountains - Waidring AlpsEastern Kitzbühel Alpsmoderate2200no_ratingno_ratinglow2200no_ratingno_ratingdp4persistent_weak_layersWNSWNWSEENES2200moderatemoderate232wind_drifted_snowNNWNE2200moderatemoderate232steady2021-04-21T22:00:00Z2021-04-22T22:00:00ZWeak 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.