Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–1.5
What and where is it:3 inches of new snow and westerly winds have built small wind slabs up to 12 inches thick on steep north-facing, east-facing, and south-facing slopes above 3000 feet. Pay careful attention to the upper sections of steep terrain, which could harbor a wind slab that is not connected to the terrain below. New wind slabs could be triggered by your weight and be sensitive to warming temperatures today. How can you recognize it: Watch for areas of new snow and deeper snow drifts sitting on top of the hard old snow surface. Snow drifts deeper than your boot, shooting cracks from under your feet, and new soft snow easily sliding on the old snow surface are signs of a wind slab. Use your hand, a ski pole, or a shovel to assess slab depth and the ability of the new snow to stick to the hard old snow.
How can you manage it:Make snowpack observations consistently throughout the day and carefully evaluate each slope you decide to travel on. While triggering an avalanche today may not be enough to bury you, it could cause an uncontrollable fall in steep terrain. Pay attention to the actions of other people, especially if they are above you where new wind slabs could be larger and more sensitive.