Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2
Strong southerly winds continue to blow and drift snow creating unstable slabs on leeward slopes near treeline and above. Fresh drifts will become deeper and more widespread as new snow accumulates. The problem will be most pronounced on upper elevation slopes with a north or easterly aspect, but cross-loading may also occur on slopes facing west or southeast. Look for fresh drifting on the leeward sides of ridge crests and terrain features such as gully walls and sub ridges. Shooting cracks in drifted snow are a sure sign of instability. Backcountry travelers should avoid any steep slopes that have recent deposits of wind drifted snow.