Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1.5–2.5
The most dangerous slopes face a northerly and easterly direction where you find recently drifted snow. Winds drifted snow into a dense, cohesive slab that rests on top of a buried weak layer two to four feet deep. Look for and avoid slopes that look textured and feel hollow or drum-like underneath you or have lens-shaped pillows of snow. Wind-sheltered slopes offer safer travel options.