Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–1.5
Moderate to strong winds will quickly scour areas harboring soft snow and deposit this snow on leeward terrain features. Soft snow available for transport is most likely found above the tree line and in places where it has been unaffected by the sun in recent days. In isolated areas, this snow may be deposited on weak surface snow and may be especially easy to trigger - this is most likely in high-elevation north-facing terrain. Look for wind drifts, cornice formation, and blowing snow - these are signs that wind slabs may be present. If you observe cracking or the snow feels hollow underneath you move to terrain under 30 degrees and avoid overhead exposure to terrain being actively wind-loaded.
(11/21/2024)
Evidence of wind-transported snow
Photo: Victor McNeil