Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2–3
Steeper slopes with wind-drifted slabs 1 to 2 feet thick are more problematic, and can produce a larger avalanche. Strong winds during the last storm aided in varying new snow depths across slopes and terrain features, and drifting in unusual places. Avalanches in the new snow could break several feet deep if triggered where older, weak layers are closer to the surface – slab margins, near exposed rocks, and on steep rollovers. Consider an alternative route if you notice the snow surface getting stiffer, or if the snow surface looks smooth and rounded. You can find safer travel options on low-angled slopes sheltered from the wind without steep hazards above.