Osterhorn Group,Gamsfeld Group

Isolated glide-snow avalanches trigger naturally

Isolated glide-snow avalanches trigger naturally

Danger of avalanches above the timberline is MODERATE, below that altitude danger is low. Avalanche prone locations focus on gullies and wind-loaded steep zones in NW/E/W aspects. Triggering a small-to-medium sized slab avalanche is possible by large additional loading. On very steep slopes, isolated small-to-medium sized glide-snow avalanches can trigger naturally.

The snowpack has regained firmness through the rainfall of this month and on the surface is now melt-freeze encrusted. At higher altitudes there is 5-10 cm of new snow deposited on a wind crust or in wind-protected zones often atop settled old snow. On steep, smooth grass-covered slopes, the snowpack glides over the ground in many places. Above the timberline there are compact older snowdrifts in gullies and bowls.

On Tuesday, visibility will be generally good, accompanied by intermittent sunshine. In the afternoon dense cloud cover will move in, creating diffuse light conditions above the summits, while the summits themselves remain free. Fog will lie over the valleys. Winds (only in summit zones) will be blowing at moderate to strong velocity from the northwest. At 1500 m: +3 degrees. On Wednesday, skies will be predominantly overcast, but hardly any precipitation is anticipated. Temperatures dropping slightly.

Little change is anticipated.