Lechquellen Mountains

Caution: persistent weak layer and snowdrifts at high altitudes

Caution: persistent weak layer and snowdrifts at high altitudes

Avalanche danger at high altitudes is moderate. With ascending altitude esp. in ridgeline terrain, fresh snowdrifts require attentiveness. Small slab avalanches can easily be triggered. On Wednesday, naturally triggered slides and loose-snow avalanches are possible on very steep slopes, esp. with solar radiation. The danger of wet-snow avalanches has receded with lower temperatures, but due to the lack of nocturnal outgoing radiation the snowpack cannot freeze. With daytime warming and solar radiation, the likelihood of triggering rises again during the day. On steep grassy slopes, glide-snow avalanches continue to be possible.

As a result of fresh snow and winds, fresh snowdrift accumulations were generated with increasing altitude over the last few days which can now stabilize due to warmth and solar radiation. The moist old snowpack surface is well consolidated. Due to the lack of nocturnal outgoing radiation it cannot freeze over and thus, softens quickly in the daytime. Isolated weak layers are possible trigger-sensitive on steep shady slopes. At low and intermediate altitudes the ground is often bare of snow, esp. on sunny slopes. Avalanche Warning Services no longer have as much information from these regions.

Nocturnal hours: gray skies, some rainfall, snowfall above 1500 m. Thursday: mostly dry, clouds will disperse, convective cloud build-up is anticipated. Some sunshine. Clouds will move in during the evening. At 2000 m: -2 to +3 degrees. Moderate to brisk westerly winds.

Friday will be gloomy and rainy, snowfall above 2400 m. Fresh drifts will form in high alpine regions. With rainfall and warmth, more wet-snow avalanches can be expected.