Wet Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Unlikely
- Size
- 1.5–2.5
Liquid meltwater has trickled down, and where it meets a hard bed surface, such as a melt-freeze crust, it can act as a lubricant in a slab avalanche. These are hard to predict but could be 1-3' thick.
Wet loose avalanches are unlikely, but a person pushing on a steep roll could still initiate one. Rollerballs have previously occurred and would not necessarily offer warning.
(3/25/2025)
The crown in the bottom middle of this photo distinguishes it as a natural wet slab, observed Tuesday. Nearby wet loose and rollerballs are all red flags that likely came first.
Photo: Victor McNeil