link Link to website https://avalanche.report/bulletin/2021-04-18 simple_link Link to the simplified website https://avalanche.report/simple/2021-04-18/en.html fd_albina_map.jpg Danger rating map (whole day) https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/fd_albina_map.jpg fd_tyrol_map.jpg Danger rating map Tirol (whole day) https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/fd_tyrol_map.jpg fd_southtyrol_map.jpg Danger rating map Southtyrol (whole day) https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/fd_southtyrol_map.jpg fd_trentino_map.jpg Danger rating map Trentino (whole day) https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/fd_trentino_map.jpg pdf PDF https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/2021-04-18_en.pdf tyrol_pdf PDF Tirol https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/2021-04-18_AT-07_en.pdf southtyrol_pdf PDF Southtyrol https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/2021-04-18_IT-32-BZ_en.pdf trentino_pdf PDF Trentino https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/2021-04-18_IT-32-TN_en.pdf fd_overlay.png Danger rating overlay (whole day) https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/fd_overlay.png fd_regions.json GeoJSON for regions (whole day) https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/fd_regions.json dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/9f78ec0c-cdd1-41ad-9157-1f44ba9e4cb4.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-18?region=9f78ec0c-cdd1-41ad-9157-1f44ba9e4cb4 2021-04-17T15:00:00Z 2021-04-17T22:00:00Z 2021-04-18T22:00:00Z Avalanche.report https://avalanche.report Sexten Dolomites Western Verwall Mountains 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 Eastern Kitzbühel Alps Glockturm Range Eastern Pfunderer Mountains Durreck Range Weißkugel Range Western Rieserferner Mountains Gurgler Range Western Deferegger Alps Central Stubai Alps Allgäu Alps Northern Zillertal Alps Eastern Lechtal Alps - Ammergau Alps Venediger Range Mieming Mountains Eastern Rieserferner Mountains Karwendel Mountains Glockner Range Gröden Dolomites Brandenberg Alps Eastern Deferegger Alps Prags Dolomites Wilder Kaiser Mountains - Waidring Alps Schober Mountains Western Lechtal Alps Lienzer Dolomites Central Lechtal Alps Grieskogel Mountains moderate 2200 no_rating no_rating low 2200 no_rating no_rating dp4 dp6 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 2021-04-18T22:00:00Z 2021-04-19T22:00:00Z Weakly bonded old snow requires caution. Fresh 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. Isolated whumpfing sounds can indicate the danger. <br/> <br/> Fresh and older wind slabs can 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. 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/> The various wind slabs have bonded quite well already together. <br/> Outgoing longwave radiation during the night will be barely evident. Some snow will fall in some localities. Hardly any decrease in danger of dry avalanches. This applies in particular at high altitudes and in high Alpine regions. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/69bb2a34-2634-47fd-900f-7ceb6a7d712c.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-18?region=69bb2a34-2634-47fd-900f-7ceb6a7d712c 2021-04-17T15:00:00Z 2021-04-17T22:00:00Z 2021-04-18T22:00:00Z Avalanche.report https://avalanche.report Latemar Val Müstair Alps Langtaufers Ortler Range Ulten Valley Eastern Nonsberger Alps Northern Dolomites of Fiemme Southern Adamello Primiero - Pale di S. Martino Adamello - Presanella Northern Brenta - Peller Western Nonsberg Alps Southern Brenta Fassa Valley Sole, Pejo and Rabbi Northern Lagorai Maddalene 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 2021-04-18T22:00:00Z 2021-04-19T22:00:00Z Weakly bonded old snow requires caution. Fresh 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. Isolated whumpfing sounds can indicate the danger. <br/> <br/> Fresh and older wind slabs are in isolated cases quite large but 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. <br/> <br/> As a consequence of warming during the day and solar radiation small and medium-sized moist and wet avalanches are possible. 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/> The various wind slabs have bonded quite well already together. <br/> Outgoing longwave radiation during the night will be reduced. The surface of the snowpack will only just freeze and will soften earlier than the day before. Hardly any decrease in danger of dry avalanches. This applies in particular at high altitudes and in high Alpine regions. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-04-18/2021-04-17_15-00-00/34b2de69-e42a-431b-80b1-d2e352eb91b4.jpg website Link to region on the website https://avalanche.report/bulletin/2021-04-18?region=34b2de69-e42a-431b-80b1-d2e352eb91b4 2021-04-17T15:00:00Z 2021-04-17T22:00:00Z 2021-04-18T22:00:00Z 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 dp6 dp10 persistent_weak_layers W N SW NW SE E NE S treeline moderate moderate 2 2 2 wind_drifted_snow N NW SE E NE 2000 moderate moderate 2 2 2 steady 2021-04-18T22:00:00Z 2021-04-19T22:00:00Z Fresh wind slabs adjacent to ridgelines. Wind slabs are mostly rather small but to be assessed with care and prudence. These are covered with new snow in some cases and therefore difficult to recognise. 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. The fresh snow of last week as well as 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 reduced. The surface of the snowpack will only just freeze and will soften earlier than the day before. <br/> Some snow will fall in some localities. The weather conditions will give rise to increasing moistening of the snowpack.