Persistent Slabs
- Alta montaña
- Límite del bosque
- Bajo el límite del bosque
- Probabilidad
- Possible
- Tamaño
- 2–3
You can trigger an avalanche where you find more than about ten inches of drifted snow at upper elevations. Avoid steep slopes with pillow-like drifts of snow, like just below ridgelines and in cross-loaded gullies. Retreat to low-angle or wind-sheltered slopes if you see cracking within the new snow.
When the sun shows its face tomorrow, loose snow will sluff off of steep, sunny slopes. Avoid traveling on or lingering underneath steep slopes with wet snow. Rocky, lower elevation sunny slopes are the most likely place you'll see wet surface snow. Fan-like point releases, rollerballs, and mushy surface snow are signs that it is wet.
There is a chance you could trigger a more dangerous avalanche that breaks on a weak layer two to four feet deep. You may not see any warning signs before you do. To reduce your chances of triggering one of these deeper slides, avoid steep slopes with a variable or thinner-than-average snowpack.