Wind Slabs
- Alta montaña
- Límite del bosque
- Bajo el límite del bosque
- Probabilidad
- Possible
- Tamaño
- 2
Strong winds on Friday and Saturday easily blew and drifted snow onto many slopes near treeline and above. Primary deposition occurred on slopes that face NW-N-NE-E. This resulted in a fairly widespread natural cycle over the weekend. In our recent travels, we encountered drifts up to two feet deep. These slabs are beginning to settle out, but it remains possible to trigger an avalanche 2 feet deep in these older drifts. If you are navigating through alpine terrain today, keep an eye out for fat, rounded, pillowy looking slabs of snow. Wind-drifted snow is stiffer and more compacted than non-drifted snow, and you will feel the difference when you cross onto a wind slab. Shooting cracks in drifted snow are a sure sign of instability.
This video was filmed on Monday, when we found sensitive drifts right at the treeline on a North facing slope.