Persistent Slabs
- Alta quota
- Limite del bosco
- Sotto il limite del bosco
- Probabilità
- Possible
- Dimensione
- 1–2
You can trigger an avalanche that breaks on buried weak layers 2 to 3 feet deep or even near the ground. Steep slopes lee to westerly winds with drifted pillows of snow are the most dangerous. Multiple people could ride a slope before you trigger a slide and you might trigger one from a distance. Avoid slopes steeper than about 30 degrees to avoid this problem.
Above-freezing temperatures, relatively light winds, and ample sunshine mean the most recent snow will shed off steep, sunny slopes. Rollerballs, pinwheels, and snow that wets your gloves when you squeeze it are signs the snow is wet. Rocky, open slopes are the most likely place to find wet snow. Look for and avoid wet snow on steep slopes. Start and end your day early to reduce your risk and don't travel on or below slopes greater than about 35 degrees with wet snow.