Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 2
With more than 6" of new snow available for transport, Moderate winds out of the Northwest will have no trouble blowing and drifting snow into sensitive soft slabs. Look for reactive drifts near and above treeline today. Last week's string of warm, sunny weather left a variety of slick crusts on most aspects. These slick crusts make great bed surfaces, and because of this, I anticipate the recent wind slabs to be particularly sensitive.
The new snow is also poorly bonded to these slick crusts. Yesterday we experienced sluffing in steep terrain, and I would expect more of the same today. In isolated areas, the new snow is cohesive enough to fail as a soft slab avalanche. It is possible to trigger shallow soft slabs involving the new snow in steep terrain today.