Persistent Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1.5–2.5
Wind-drifted slopes near and above treeline are the most dangerous and likely places to trigger an avalanche. A weak snow layer buried just below the recent snowfall has been quite reactive and will grow more unstable as fresh snow and strong winds build thicker slabs throughout the day. Use extra caution or simply avoid slopes where you find new or drifted snow deeper than a foot. This includes previous slopes that slid during the Thanksgiving event and have filled back in.
Steep northerly slopes are also becoming problematic. Weak snow surfaces and shallowly buried weak layers are easily disturbed, entraining enough mass to knock you off your feet. There is a lot of variability out there right now, but there are not many signs of instability. Sticking to conservative terrain choices is a good way to hedge your risk.