Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
Recent strong winds built snow drifts of varying thickness at upper elevations. You may be able to trigger an avalanche in a shallow area on a drifted snow – near exposed rocks and trees, on steep rollovers, or beneath ridges and cliffs. Avalanches triggered on slopes with less than about 3 feet of snow could take the entire season’s snowpack with it, and those slides would be larger. You can find safer travel options near and below treeline, and on lower angle, wind-sheltered slopes.