Trigger | Snowmachiner | Remote Trigger | Unknown |
Avalanche Type | Hard Slab | Aspect | West |
Elevation | 4100ft | Slope Angle | 40deg |
Crown Depth | 4ft | Width | 150ft |
Vertical Run | 150ft |
Sledding in Upper Willow Creek.
Trigger | Snowmachiner | Remote Trigger | Unknown |
Avalanche Type | Hard Slab | Aspect | West |
Elevation | 4100ft | Slope Angle | 40deg |
Crown Depth | 4ft | Width | 150ft |
Vertical Run | 150ft |
Snowmachine side hilling on lower part of slope. The slope above and to the side of him fractured as he was descending. The sledder was able to accelerate out of the way of the avalanche.
Significant new snow and some indication of wind transport, loading.