Persistent Slabs
N
NE
E
SE
S
SW
W
NW
- Alpin
- Limite forestière
- Sous la limite forestière
- Probabilité
- Possible
- Taille
- 1–1.5
You can trigger an avalanche on steep slopes where you find new snow or wind-drifted snow that forms a cohesive slab. The most dangerous slopes face north through east, near and above treeline. If you observe cracking or collapsing as you travel over the new snow, avoid slopes steeper than about 35 degrees. Be on the lookout for snow blowing onto leeward slopes and avoid areas of drifted snow below ridges and on convex rollovers. You should expect and prepare for avalanche danger to increase throughout the day on Tuesday and even more on Wednesday.