West Sibillini Mountains

Individual weak layers exist in the top section of the old snowpack.

Individual weak layers exist in the top section of the old snowpack.

The wind slabs of last week are poorly bonded with the old snowpack in particular on northwest to north to east facing aspects above approximately 1800 m. Individual weak layers exist in the top section of the old snowpack. Below approximately 1800 m mostly small moist snow slides and avalanches are possible.

As a consequence of the strong wind, fresh snow drift accumulations formed during the last few days. The wind slabs have bonded with the old snowpack. They are to be assessed with care and prudence. In addition further wind slabs formed in gullies and bowls, and behind abrupt changes in the terrain. Weak layers in the old snowpack indicate that the stability of the snowpack varies greatly within a small area.