Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–2
You can trigger an avalanche if you find a moist snow surface at lower elevations. These avalanches can start small, grow in size, and knock you off your feet. Pay attention to the consequences of getting carried over rocks or through trees. Move to low-angled slopes at higher elevations, or call it a day if you start to punch through to the top of your boots.
You could trigger an avalanche that breaks one to three feet deep at upper elevations and across multiple terrain features. Several people could ride a slope before you trigger one of these dangerous avalanches. Slopes less than about 30 degrees offer safer travel options.