2015-02-27T07:30:00+01:00 Patrick Nairz 2015-02-27+01:00 https://lawine.tirol.gv.at/data/fotos/sonstiges_7.JPG https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/colour/png/en https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/bw/png/en https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/detail/png/en https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/problem1/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/problem1_elevation/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/problem1_aspect/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/problem2/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/problem2_elevation/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/problem2_aspect/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/generallevel/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/generallevel_bw/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/resources/tendency/png https://lawine.tirol.gv.at/rest/bulletin/2015-02-27_073000/pdf/en As winds intensify, new snowdrifts will accumulate. Caution at high altitudes! Major danger: ridgeline snowdrifts at high altitude 2015-02-24+01:00 2 2015-02-25+01:00 2 2015-02-26+01:00 2 2015-02-27+01:00 2 2015-02-28+01:00 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 1800 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 1800 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 1800 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 1800 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 1800 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 1800 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 1800 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 1800 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 2 2015-02-27T00:00:00+01:00 2015-02-27T11:59:59+01:00 2000 1 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 2 2015-02-27T12:00:00+01:00 2015-02-27T23:59:59+01:00 2000 1 DP6 DP8 DP7 drifting snow 2000 ridgeline slopes persistent weak layer 2600 isolated Alpine Weather Forecast (ZAMG-Weather Service Innsbruck) Weather: layers of cirrus cloud over the western sector of the Main Alpine Ridge and Lechtal Alps will bring about diffuse light conditions and some high altitude fog. The floor of the cloud cover will drop incrementally lower and light snowfall will set in. The eastern ranges (Karwendel to Tux and Zillertal Alps as far as the Tauern and Carnic Alps) will initially be foehn-influenced and dry. By tomorrow morning, 10-15 cm of fresh fallen snow is anticipated in the Lechtal Alps; 5-10 cm elsewhere. Temperature at 2000m, -3 degrees; at 3000m, -10 degrees. Light to moderate westerly winds to start with, only in the foehn lanes will wind be stronger; brisker this afternoon in the Lechtal Alps. Snow Layering Internal tensions of the snow cover are low overall, excluding recently formed snowdrift accumulations. The drifts can release from the surface hoar layer on which they sit, most prevalent in shady, sparsely wooded terrain and on shady ridgeline slopes. They can also trigger at the borderline to the loose powder snow beneath them, particularly on sunny ridgeline slopes (due to recent northerly winds). Stability tests demonstrate that the fractures inside the old snowpack no longer tend to propagate. The depth hoar deep down inside the snowpack is the weakest point. Avalanche Danger Generally quite favourable conditions prevail today. The danger above approximately 2000m is moderate; below that altitude, low. The scenario in the classic foehn lanes is less favourable: above the treeline danger zones are far more prevalent. The major peril stems from recently formed, usually shallow snowdrift accumulations, most prevalent at high altitudes near ridgelines in steep terrain. Their proneness to triggering tends to increase with ascending altitude. Elsewhere, isolated danger zones in wind-exposed terrain on shady, steep slopes, most often near the treeline, where small avalanches can release from blanketed surface hoar even from the weight of one sole skier. The old snowpack is unlikely to trigger, at most above approximately 2600m in spots where the snow is shallow, by large additional loading.