link Link to website https://avalanche.report/bulletin/2021-12-25 simple_link Link to the simplified website https://avalanche.report/simple/2021-12-25/en.html fd_albina_map.jpg Danger rating map (whole day) https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/fd_albina_map.jpg fd_tyrol_map.jpg Danger rating map Tirol (whole day) https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/fd_tyrol_map.jpg fd_southtyrol_map.jpg Danger rating map Southtyrol (whole day) https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/fd_southtyrol_map.jpg fd_trentino_map.jpg Danger rating map Trentino (whole day) https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/fd_trentino_map.jpg pdf PDF https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/2021-12-25_en.pdf tyrol_pdf PDF Tirol https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/2021-12-25_AT-07_en.pdf southtyrol_pdf PDF Southtyrol https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/2021-12-25_IT-32-BZ_en.pdf trentino_pdf PDF Trentino https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/2021-12-25_IT-32-TN_en.pdf fd_overlay.png Danger rating overlay (whole day) https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/fd_overlay.png fd_regions.json GeoJSON for regions (whole day) https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/fd_regions.json dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/4d79eda4-078b-42be-ab62-70ea7fdbfba6.jpg website Link to region on the website https://avalanche.report/bulletin/2021-12-25?region=4d79eda4-078b-42be-ab62-70ea7fdbfba6 2021-12-24T16:00:00Z 2021-12-24T23:00:00Z 2021-12-25T23:00:00Z Avalanche.report https://avalanche.report Karwendel Mountains Western Lechtal Alps Central Lechtal Alps Allgäu Alps Eastern Lechtal Alps - Ammergau Alps Mieming Mountains moderate treeline no_rating no_rating low treeline no_rating no_rating dp6 dp7 wind_drifted_snow NE SE NW W N E S SW treeline moderate moderate 1 3 3 persistent_weak_layers NE NW W N E 2200 moderate moderate 3 3 1 steady 2021-12-25T23:00:00Z 2021-12-26T23:00:00Z Wind slabs above the tree line. Weakly bonded old snow is to be evaluated with care and prudence. As a consequence of a sometimes strong wind from westerly directions, sometimes avalanche prone wind slabs will form above the tree line. These are mostly easy to recognise and can be released in isolated cases at their margins. In particular transitions from a shallow to a deep snowpack are unfavourable. Avalanche prone locations are to be found in particular in gullies and bowls, and behind abrupt changes in the terrain and in shady places that are protected from the wind. <br/> Avalanches can additionally in very isolated cases be released in the weakly bonded old snow by a single winter sport participant, in particular on very steep shady slopes above approximately 2200 m, as well as on steep sunny slopes in high Alpine regions. In very isolated cases avalanches can also reach large size. Isolated whumpfing sounds can indicate the danger. In particular areas where the snow cover is rather shallow are unfavourable. Very steep, little used shady slopes are to be evaluated with care and prudence. <br/> On sunny slopes individual gliding avalanches are possible. Areas with glide cracks are to be avoided. The fresh and older wind slabs are poorly bonded with the old snowpack in particular on steep shady slopes. <br/> Faceted weak layers exist in the centre of the snowpack, in particular on shady slopes above the tree line, as well as on sunny slopes in high Alpine regions. In areas where the snow cover is rather shallow the likelihood of avalanches is higher. Snow profiles and stability tests confirm that the stability of the snowpack varies greatly within a small area in these altitude zones. <br/> As a consequence of rising temperatures a crust formed on the surface, especially on steep sunny slopes below approximately 2800 m. Snow depths vary greatly above the tree line, depending on the infuence of the wind. On steep sunny slopes less snow than usual is lying. <br/> The snowpack is faceted; its surface is loosely bonded and consists of surface hoar, in particular in shady places that are protected from the wind below the tree line. As a consequence of mild temperatures the snow drift accumulations will stabilise during the next few days. On shady slopes the situation is less favourable. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/9ad4122b-e795-4e61-99ba-ebabe5c810bf.jpg website Link to region on the website https://avalanche.report/bulletin/2021-12-25?region=9ad4122b-e795-4e61-99ba-ebabe5c810bf 2021-12-24T16:00:00Z 2021-12-24T23:00:00Z 2021-12-25T23:00:00Z Avalanche.report https://avalanche.report Brandenberg Alps Western Kitzbühel Alps Wilder Kaiser Mountains - Waidring Alps Eastern Kitzbühel Alps moderate treeline no_rating no_rating low treeline no_rating no_rating dp6 dp7 wind_drifted_snow NE SE NW W N E S SW treeline moderate moderate 2 3 2 steady 2021-12-25T23:00:00Z 2021-12-26T23:00:00Z Wind slabs are to be avoided. The fresh wind slabs are in some cases prone to triggering. They are mostly rather small but can be released easily, in particular in areas where the snow cover is rather shallow. Avalanches can be triggered in the various wind slab layers and reach medium size in some cases. Caution is to be exercised on steep shady slopes, as well as adjacent to ridgelines in all aspects. Below the tree line: Adjacent to ridgelines the avalanche situation is rather unfavourable. Very steep, little used slopes are to be traversed by snow sport participants one at a time. <br/> Individual gliding avalanches are possible. Areas with glide cracks are to be avoided. The wind will be moderate to strong for a temporary period. The fresh and older wind slabs are in some cases still prone to triggering. They are poorly bonded with the old snowpack in particular on shady slopes. <br/> Faceted weak layers exist in the centre of the snowpack, in particular on shady slopes above the tree line, as well as on sunny slopes at intermediate and high altitudes. As a consequence of mild temperatures a crust formed on the surface during the last few days. This applies in particular on steep sunny slopes, as well as in all aspects at low and intermediate altitudes. <br/> Below the tree line, shady places that are protected from the wind: The snowpack is faceted; its surface is loosely bonded and consists of surface hoar. As a consequence of mild temperatures the snow drift accumulations will stabilise during the next few days. On shady slopes the situation is less favourable. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-12-25/2021-12-24_16-00-00/81b52d66-fd39-4ecd-9362-cec3aa128815.jpg website Link to region on the website https://avalanche.report/bulletin/2021-12-25?region=81b52d66-fd39-4ecd-9362-cec3aa128815 2021-12-24T16:00:00.004464Z 2021-12-24T23:00:00Z 2021-12-25T23:00:00Z Avalanche.report https://avalanche.report Sexten Dolomites Latemar Southern Adamello Adamello - Presanella Northern Brenta - Peller Bondone and Stivo Folgaria - Laverone Southern Brenta Southern Lagorai Northern Lagorai Grieskogel Mountains 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 Pfunderer Mountains Glockturm Range Maddalene Pine' - Mocheni Valley Eastern Pfunderer Mountains Durreck Range Weißkugel Range Western Rieserferner Mountains Gurgler Range Western Deferegger Alps Central Stubai Alps Ortler Range Northern Zillertal Alps 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 Prealps Schober Mountains Cembra Valley Lienzer Dolomites Vallarsa Western Nonsberg Alps Fassa Valley Sole, Pejo and Rabbi Ledro Valley Paganella Marzola - Valsugana moderate 2200 no_rating no_rating low 2200 no_rating no_rating dp7 dp6 persistent_weak_layers NE NW W N E 2200 moderate moderate 3 3 1 wind_drifted_snow NE NW W N E 2200 moderate moderate 2 2 2 steady 2021-12-25T23:00:00Z 2021-12-26T23:00:00Z Weakly bonded old snow requires caution. Wind slabs above approximately 2200 m. Avalanches can in isolated cases be released in the weakly bonded old snow by small loads, in particular on very steep shady slopes above approximately 2200 m, as well as on steep sunny slopes in high Alpine regions. In very isolated cases avalanches can also reach large size. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack can indicate the danger. In particular areas where the snow cover is rather shallow are unfavourable. Very steep, little used slopes are to be evaluated with care and prudence. <br/> The wind slabs of the last few days are in some cases still prone to triggering. They are mostly easy to recognise but can be released in isolated cases at their margins. They are to be avoided in particular in very steep terrain. Avalanche prone locations are to be found in particular in gullies and bowls, and behind abrupt changes in the terrain and in shady places that are protected from the wind. Caution is to be exercised in particular at transitions from a shallow to a deep snowpack. Faceted weak layers exist in the centre of the snowpack, in particular on shady slopes above the tree line, as well as on sunny slopes in high Alpine regions. <br/> The fresh wind slabs are poorly bonded with the old snowpack in particular on steep shady slopes. <br/> The snowpack will be generally subject to considerable local variations. Above the tree line snow depths vary greatly, depending on the infuence of the wind. The snowpack consists of faceted crystals; its surface is loosely bonded and consists of surface hoar and faceted crystals. This applies in particular on shady slopes above the tree line. <br/> On sunny slopes below approximately 2200 m only a little snow is now lying. As a consequence of solar radiation a crust formed on the surface, especially below approximately 2800 m. A generally favourable avalanche situation will prevail. On little-used, rather lightly snow-covered slopes the situation is a little more dangerous.