Avalanche forecast

Circumvent fresh snowdrifts. Naturally triggered avalanches possible, sometimes plummeting down to green zones.

Circumvent fresh snowdrifts. Naturally triggered avalanches possible, sometimes plummeting down to green zones.

Snowdrift accumulations which are prone to triggering are being generated particularly in gullies, bowls and behind protruberances in the landscape due to fresh snow and moderate-velocity winds. The freshly generated drifts can be triggered even by one sole skier. Particularly unfavorable are shady slopes. Avalanches can in isolated cases trigger naturally and grow to medium size. They can also plummet in steep gullies down to green zones. As the snowfall level drops, size of danger zones will tend to increase during the course of the day.

Up to 50 cm of fresh snow is expected regionally, locally more. Often moderate-velocity winds will transport the fresh fallen snow. Fresh snow and ddrifts will be deposited atop a weak old snowpack surface above 1800m. The old snowpack is expansively metamorphosed, and faceted, and is highly diverse even over small areas.

Tuesday will bring a low-pressure front from Italy and often heavy snowfall. Initially the snowfall level will be at 1500m, with wet snow; then in afternoon, colder air masses will arrive and the snowfall level will drop to beneath 1000m. Visibility will be starkly reduced by fog. Winds will shift to northerly as precipitation falls, reach windspeeds of 40 km/hr. Temperatures will drop. At 2000m: -4 degrees in the evening. Further weather forecasts are as yet uncertain, particularly the snowfall level.

Circumvent freshly generated snowdrift accumulations