Weisseck, Muhr Valley

Moderate wet-snow problem. Beware snowdrifts in high-alpine zones.

Moderate wet-snow problem. Beware snowdrifts in high-alpine zones.

Avalanche danger is moderate, on steep slopes below 2800m which have not yet discharged, small-to-medium moist/wet-snow avalanches can releases spontaneously, esp. with extended sunshine windows, or be triggered by persons. Also isolated small-to-medium glide-snow avalanches are possible. Danger zones for small snowdrifts occur in shady wind-loaded gullies and bowls above 2800m. Dry-snow slab avalanches can be triggered here by one sole skier. Isolated avalanches can fracture down to the wet layers and sweep them along, thereby growing to medium size.

The snowpack is moist or wet up to high altitutudes, contains melt-freeze crusts even though the snowpack is quite compact overall, weak layers are isolated but occur above 2500m. In some places in this compact, moist old snowpack there are a few cm of fresh snow lying atop it. Dry weak layers of faceted crystals exist only on shady slopes above 2800m. Due to storm-strength southerly foehn winds, small snowdrift accumulations have been generated over the last few days, esp. on very steep shady slopes, deposited them atop weak layers where they are prone to triggering.

During the nocturnal hours the precipitation will taper off swiftly (snowfall level at 2000m). On Friday, limited visibiliity due to clouds, fog and showers. Some bright intervals. Snowfall level at about 2000m. Little wind. At 2000m: -1 to +2 degrees; at 3000m: -5 degrees.

Springtime situation: slight daytime danger cycle. The snowdrift problem is receding.