Wind Slabs
- Alpine
- Treeline
- Below treeline
- Likelihood
- Possible
- Size
- 1–1.5
Yesterday, north-northwest wind picked up considerably at noon. Wind speeds averaged 23 mi/hr with gusts to over 100 mi/hr near treeline. Gale force wind speeds are expected to persist today. Look for small wind slabs in isolated areas above treeline. Strong wind may be able to affect near treeline terrain too, where loose powder snow remains available for transport. Large cornices exist in many areas along ridges. Wind slab instability usually heals fairly quickly, but people still might be able to trigger a slab avalanche or cornice fall in steep, drifted terrain.