Lechquellen Mountains

Daytime increase of avalanche danger. Beware snowdrifts in high-alpine zones.

Daytime increase of avalanche danger. Beware snowdrifts in high-alpine zones.

Avalanche danger is initially low, then rises during the afternoon above 1600m to moderate. On steep slopes below 2600m which have not yet discharged, medium-sized wet-snow avalanches can trigger naturally or be triggered by persons. Also isolated small-to-medium glide-snow avalanches are possible. In high-alpine zones, fresh snowdrift accumulations require attentiveness, most of them are small but often easily triggered. Danger zones occur in gullies, bowls, behind protruberances in the terrain and on steep shady slopes above 2600m. Isolated small-to-medium avalanches can be triggered by winter sports enthusiasts in the old snow. Avalanche prone locations lie in seldom-tracked shady terrain and are difficult to recognize.

During mild nights of clear skies, little wind and dry air, the snowpack has reduced nocturnal outgoing longwave radiation and only in some places can form a melt-freeze crust capable of bearing loads. Through higher daytime temperatures and solar radiation, the crust then softens rapidly and the snowpack loses its firmness. Beneath the melt-freeze crust the snowpack is thoroughly wet up to high altitudes. Especially in the Silvretta region on high-altitude very steep shady slopes there are still unfavorable intermediate layers evident inside the old snowpack.

Partially cloudy, foehn-impacted and often mild and dry nocturnal hours. Easter Sunday will be quite sunny, with good visibility. In the afternoon hours, convective cloud build-up is anticipated, with a tendency towards showers. At 2000m: +1 to +7 degrees. Moderate strength SW winds, stronger in the foehn lanes.

Avalanche danger will rapidly increase inside the daytime danger cycle.