Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible
- Größe
- 1–2
The most problematic slopes are near and above treeline, where strong winds have drifted layers of hard snow over softer snow layers. Avalanches near the surface may trigger more dangerous slides that break on weak layers in the middle or bottom of the snowpack. Look for and avoid areas beneath ridgelines or cornices, and on steep sidewalls of gullies where you find evidence of drifting such as lens-shaped pillows of snow or snow that feels hollow or drum-like below your feet or machine. Seek wind-sheltered slopes lower in the terrain if you see cracking in the snow or signs of recent avalanches.