Persistent Slabs
- Alta montaña
- Límite del bosque
- Bajo el límite del bosque
- Probabilidad
- Possible
- Tamaño
- 1–2
You can trigger an avalanche in drifted slabs at upper elevations. Soft drifts over 8 inches deep, or hard drifts that support your weight are the most suspect. Cracking in the new snow is a sign you could trigger a slide. Avoid lens-shaped pillows of snow where you see them on steep slopes directly below ridges and in gullies.
Avalanches can step down into older drifts and grow larger. Some could break in weak snow near the ground. You might not see any warning signs before you trigger a deeper avalanche. Drifted rocky slopes with variable snow cover are the most likely place to trigger a deeper avalanche.
Look for safer riding on slopes less than about 30 degrees and in the trees sheltered from the wind.
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