Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Hochgebirge
- Waldgrenze
- Unterhalb der Waldgrenze
- Wahrscheinlichkeit
- Possible
- Größe
- 1–2
You can trigger a dangerous avalanche that breaks weak layers and crusts one to three feet below the snowpack surface. These avalanches can propagate widely. You can find these layers on many slopes, but the most dangerous are the ones where recent winds have drifted lots of snow. Use caution on the lee side of a ridgeline or below cornices. Evaluate any steep slope for buried weak layers before you travel on them.