Persistent Slabs
- Alta montaña
- Límite del bosque
- Bajo el límite del bosque
- Probabilidad
- Possible
- Tamaño
- 2
(Although these avalanches occurred in the Salt Lake mountains, a similar snowpack exists in the upper elevations of the Ogden mountains.)
Sunday's avalanche in Two Dogs, plus three avalanches in Hidden Canyon this past week all failed in weak snow down near the ground. Sunday's Two Dogs avalanche may be the sign that on many slopes where the persistent weak layer (PWL) exists, the weight of new and wind-driven snow may finally be enough to affect this deeply-buried weak layer, creating large and destructive avalanches.
Two Dogs Avalanche on Sunday in the Salt Lake Mountains.