Fischbach Alps West, Graz Highlands

MODERATE avalanche danger above the timberline due fresh snowdrift accumulations

MODERATE avalanche danger above the timberline due fresh snowdrift accumulations

MODERATE avalanche danger above the timberline, LOW below that altitude. Strong-to-stormy NW winds combined with snowfall are generating fresh snowdrift accumulations in gullies and bowls in all aspects near to and distant from ridgelines, also in sparsely wooded zones. Small-to-medium sized slab avalanches can be triggered even by one person. Weak layers are prone to triggering, can be released even by one person and grow to large size. Poor visibility makes assessment of dangers on-site very difficult. As the snowfall level ascends during the day, small naturally triggered avalanches can release from forested and grass-covered slopes.

In the last 24 hours there has been 10-20 cm of fresh snow registered widespread, more more arrived on Thursday night and Friday morning which will be transported by NW winds and deposit new drifts on south and east-facing slopes atop loose fresh snow or bonded drifts. Weak layer occur inside the fresh snow and at the borders to the snowpack. As the snowfall level rises and daytime warming is felt, the snowpack below 1000-1200 will moisten and forfeit firmness.

A strong NW air current is bringing stormy winds and some snowfall. More fresh snow on Friday morning, then an interim until afternoon. The snowfall level will ascend temporarily to about 1000-1200 m, light rainfall or sleet at low altitudes. Towards evening, precipitation will renew, the snowfall level descend slowly. At 2000 m: -4 degrees; the zero-degree level lies at 1400 m. On Saturday, light snowfall during the morning. Stormy NW winds in the mountains. At 2000 m: -12 degrees.

Stormy winds continue to make the snowdrifts prone to triggering. No significant change is expected in avalanche danger levels.