link Link to website https://avalanche.report/bulletin/2021-12-15 simple_link Link to the simplified website https://avalanche.report/simple/2021-12-15/en.html fd_albina_map.jpg Danger rating map (whole day) https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/fd_albina_map.jpg fd_tyrol_map.jpg Danger rating map Tirol (whole day) https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/fd_tyrol_map.jpg fd_southtyrol_map.jpg Danger rating map Southtyrol (whole day) https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/fd_southtyrol_map.jpg fd_trentino_map.jpg Danger rating map Trentino (whole day) https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/fd_trentino_map.jpg pdf PDF https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/2021-12-15_en.pdf tyrol_pdf PDF Tirol https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/2021-12-15_AT-07_en.pdf southtyrol_pdf PDF Southtyrol https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/2021-12-15_IT-32-BZ_en.pdf trentino_pdf PDF Trentino https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/2021-12-15_IT-32-TN_en.pdf fd_overlay.png Danger rating overlay (whole day) https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/fd_overlay.png fd_regions.json GeoJSON for regions (whole day) https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/fd_regions.json dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/f1fbc1e8-4e16-4536-9f8e-cdff81adaa20.jpg website Link to region on the website https://avalanche.report/bulletin/2021-12-15?region=f1fbc1e8-4e16-4536-9f8e-cdff81adaa20 2021-12-14T16:00:00.004986Z 2021-12-14T23:00:00Z 2021-12-15T23:00:00Z Avalanche.report https://avalanche.report Sexten Dolomites Latemar Southern Adamello Adamello - Presanella Northern Brenta - Peller Folgaria - Laverone Southern Brenta Southern Lagorai Northern Lagorai Allgäu Alps Eastern Lechtal Alps - Ammergau Alps Mieming Mountains Karwendel Mountains Western Lechtal Alps Central Lechtal Alps 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 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 Rieserferner Mountains Northern Dolomites of Fiemme Glockner Range Gröden Dolomites Primiero - Pale di S. Martino Eastern Deferegger Alps Prags Dolomites Prealps Schober Mountains Lienzer Dolomites Vallarsa Fassa Valley Sole, Pejo and Rabbi Marzola - Valsugana considerable treeline no_rating no_rating low treeline no_rating no_rating dp6 persistent_weak_layers NE E SW NW SE S W N treeline considerable considerable 3 3 2 wind_drifted_snow NE E NW W N treeline moderate moderate 2 3 2 gliding_snow E SW SE S W 2400 low low 1 1 steady 2021-12-15T23:00:00Z 2021-12-16T23:00:00Z Weakly bonded old snow requires caution. Wind slabs are to be evaluated with care and prudence. Weak layers in the old snowpack can still be released by individual winter sport participants. Caution is to be exercised in areas where the snow cover is rather shallow. Remotely triggered avalanches are possible in isolated cases. Mostly avalanches are medium-sized. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack indicate poor snowpack stability. <br/> The somewhat older wind slabs are in some cases still prone to triggering, in particular on steep shady slopes above the tree line, as well as in all aspects at elevated altitudes. <br/> On very steep sunny slopes wet and gliding avalanches are possible as the day progresses, this also applies on steep shady slopes at intermediate altitudes. <br/> Extensive experience in the assessment of avalanche danger is required. 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 elevated altitudes. The old snowpack will be prone to triggering in high Alpine regions. Field observations and snow profiles confirm this situation. <br/> The wind slabs of the weekend are in some cases still prone to triggering. They are poorly bonded with the old snowpack in particular on shady slopes. As a consequence of mild temperatures and solar radiation the snowpack will consolidate during the next few days. <br/> Sunshine and high temperatures will give rise as the day progresses to slight moistening of the snowpack. The weather conditions will foster a gradual strengthening of the near-surface layers. The danger of dry avalanches will decrease gradually. On shady slopes the situation is more dangerous. The danger of wet and gliding avalanches will increase a little during the day. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/ed9bfc7d-cd6e-4859-8bc9-44c3e832c564.jpg website Link to region on the website https://avalanche.report/bulletin/2021-12-15?region=ed9bfc7d-cd6e-4859-8bc9-44c3e832c564 2021-12-14T16:00:00.004986Z 2021-12-14T23:00:00Z 2021-12-15T23:00:00Z Avalanche.report https://avalanche.report Cembra Valley Bondone and Stivo Western Nonsberg Alps Ledro Valley Eastern Nonsberger Alps Paganella moderate treeline no_rating no_rating low treeline no_rating no_rating dp6 persistent_weak_layers NE E SW NW SE S W N treeline moderate moderate 2 3 2 wind_drifted_snow NE E NW W N treeline moderate moderate 2 3 2 wet_snow E SW SE S W 2400 low low 1 1 steady 2021-12-15T23:00:00Z 2021-12-16T23:00:00Z Weakly bonded old snow is to be evaluated with care and prudence. Wind slabs are to be avoided. Avalanches can in some places be released in the weakly bonded old snow, in particular in areas where the snow cover is rather shallow. Mostly avalanches are medium-sized. Whumpfing sounds and the formation of shooting cracks when stepping on the snowpack indicate this situation. <br/> The wind slabs of the last few days are in some cases still prone to triggering. They are mostly rather small but can be released easily. Caution is to be exercised on steep shady slopes above the tree line, as well as in all aspects at elevated altitudes. <br/> On very steep sunny slopes moist snow slides and avalanches are possible as the day progresses. <br/> Careful route selection is recommended. Steep slopes are to be traversed by snow sport participants one at a time. 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 elevated altitudes. Field observations and snow profiles confirm this situation. <br/> The wind slabs of the weekend are in some cases still prone to triggering. They are poorly bonded with the old snowpack in particular on shady slopes. As a consequence of mild temperatures and solar radiation the snowpack will consolidate during the next few days. <br/> Sunshine and high temperatures will give rise as the day progresses to slight moistening of the snowpack. The weather conditions will foster a slow strengthening of the near-surface layers. The danger of dry avalanches will decrease gradually. On shady slopes the situation is less favourable. The danger of wet and gliding avalanches will increase a little during the day. dangerRatingMap Simplified danger rating map of the region https://avalanche.report/albina_files/2021-12-15/2021-12-14_16-00-00/fb7a315b-db14-4fa1-b4a9-b9518e76ae29.jpg website Link to region on the website https://avalanche.report/bulletin/2021-12-15?region=fb7a315b-db14-4fa1-b4a9-b9518e76ae29 2021-12-14T16:00:00Z 2021-12-14T23:00:00Z 2021-12-15T23:00:00Z Avalanche.report https://avalanche.report Eastern Tuxer Alps 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 dp1 wind_drifted_snow NE E NW W N treeline moderate moderate 2 3 2 wet_snow E SW SE S W 2400 low low 1 1 steady 2021-12-15T23:00:00Z 2021-12-16T23:00:00Z Wind slabs are to be avoided. The wind slabs of the last few days are in some cases still prone to triggering. They are mostly rather small but can be released easily, in particular in areas where the snow cover is rather shallow. <br/> Caution is to be exercised on steep shady slopes above the tree line, as well as in all aspects at elevated altitudes. <br/> Avalanches can in very isolated cases be released in the weakly bonded old snow. Mostly avalanches are rather small. Isolated whumpfing sounds indicate this situation. <br/> On very steep sunny slopes moist snow slides and avalanches are possible as the day progresses. <br/> Careful route selection is recommended. Steep slopes are to be traversed by snow sport participants one at a time. The wind slabs of the weekend 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 elevated altitudes. Field observations and snow profiles confirm this situation. <br/> As a consequence of mild temperatures and solar radiation the snowpack will consolidate during the next few days. <br/> Sunshine and high temperatures will give rise as the day progresses to slight moistening of the snowpack. The weather conditions will foster a slow strengthening of the near-surface layers. The danger of dry avalanches will decrease gradually. On shady slopes the situation is less favourable. The danger of wet and gliding avalanches will increase a little during the day.