Avalanche
- Slab Width
- 53 m
- Trigger Type
- Snowmobiler
- Slab Thickness
- 41 cm
- Start Zone Aspect
- Northeast
- Start Zone Elevation
- 2591 m
This slide was remotely triggered by two snowmobiles riding on the road, it broke above them and propagated close to 200’ across the hill. It was surprising to see how far across it went. The debris covered the road and their tracks, I don’t think they realized what happened. We rode into the debris just after passing them. Slope angle seemed to be about 38-40 degrees, it appeared to have failed on the new snow/old snow interface. There were more weak layers closer to the surface apparent in the crown as well. This was at about 3:30pm, it had been snowing hard all day in the area. This small steep slope only had about 50’ of vert to slide until the road, but in bigger terrain this would have been huge. Wind loading may have been a factor, even though it’s far from the main ridgelines.