Bollettino valanghe

Circumvent snowdrifts

Circumvent snowdrifts

Snowdrift accumulations which are prone to triggering will be generated particularly in gullies, bowls and behind protruberances in the landscape due to fresh snow and medium-velocity winds will increase further The freshly generated drifts can be triggered even by one sole skier. Isolated dry-snow avalanches also possible, esp. in the major areas of participation. Releases will be mostly small-sized, medium-sized in isolated cases. Size of danger zones tend to increase with ascending altitude.Shady slopes are especially unfavorable. Danger zones tend to increase in frequency with ascending altitude.

Up to 20 cm of fresh snow was registered above 1800m, locally more, an additional 10cm is expected regionally during the nighttime hours. Often storm-strength winds will transport the fresh fallen snow, in some places also the old snow. The fresh snowdrift accumulations will be poorly bonded with the old snowpack, deposited atop a weak old snowpack surface particularly above 1800m. The fresh drifts lie deposited atop an old snowpack which is expansively metamorphosed, weak and faceted. The snowpack is highly diverse even over small areas. There is too little snow on the ground for this juncture of the season.

On Friday morning, the cold front clouds will swiftly reced to the southeast. Directly on the Main Tauern Ridge clouds and fogbanks can reduce visibility, a bit of snowfall is possible. In late afternoon, widespread cloudbanks from the west will move in. At 2000m at midday: -9 degrees; at 3000m: -18 degrees. The initially stormy NW wind, easing off in the afternoon, will intensify the subjective feeling of cold even more. Source: GeoSphere Austria

Cirvumvent fresh snowdrifts