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 one to three feet deep on weak layers and crusts beneath the most recent storm snow. These avalanches can propagate widely. You can find these layers on many slopes, but the most dangerous are the ones where recent southwesterly winds 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.