Persistent Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1.5–2.5
New snow continues to add stresses to old weak snow layers. Any area where you can feel your track break through to sugary snow well below the surface is a blatent sign that this weakness exists. Skiers are more likely to feel collaps of the snowpack. Slabs involving these buried weaknesses could be triggered by a single person finding the right spot on a slope or by the release of a smaller wind slab. If triggered they could be hard or soft in character and have depths to over 3 feet.
(3/1/2023)
Riders at Togwotee triggered this avalanche from below the slope on a southerly aspect at the middle elevation. The culprit is likely facets on crust, buried 1-2 feet deep, and remains very reactive.
Photo: Olivia Lane