Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1.5–2.5
You can trigger an avalanche in recently drifted snow that breaks about a foot deep. Look for and avoid drifted pillows of recent snow directly below steep ridgelines, convex rollovers, and in gullies. Cracking in the new snow is a sign it is unstable and a signal to avoid steep slopes. An avalanche you trigger in drifted snow can step down deeper layers, resulting in a larger, more dangerous avalanche.