Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Likely
- Size
- 1–1.5
Modest snowfall overnight accompanied by strong to extreme southwest winds have likely led to fresh wind slab formation in leeward catchment zones near and above treeline. While unstable wind slabs are most likely small in size, some larger, more concerning slabs may exist in areas that receive more substantial accumulations, namely, at higher elevations and areas closer to the Sierra crest. Be on the lookout for areas with fresh deposits of new cold snow, recent drifting and cornice growth, and uneven textured snow surfaces. These are all clues that indicate nearby wind deposits. Do your own localized assessments and be suspect of terrain features that encourage drifting, such as the leeward sides of ridgelines, alpine couloirs, gully features, and cross-loaded depressions.
(3/9/2024) Photo: Eastern Sierra Avalanche Center