Wind Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 2
Winds will be light today, but some drifting of light powder snow is likely, and a few inches of fresh snow will hide drifts from earlier in the week. People could trigger slab avalanches of wind drifted snow in steep upper and mid elevation terrain. Tuesday night's east winds easily picked up fresh powder on the surface and deposited it on sugary faceted snow in deceleration zones. The drifting created stiff wind slabs in unusual, perhaps unexpected places, capping weak snow. Some wind slabs will remain unstable for a while because the sugary snow that they formed on is a buried persistent weak layer.
- Avoid recently or previously drifted snow on steep slopes at mid and upper elevations on the lee side of ridges and in and around terrain features like sub-ridges, gullies, and cliff bands.
- Avalanches of wind drifted snow failing on a persistent weak layer could be triggered remotely, from a distance, or below.