Onion cornice failure
Quick reportFred Carriere · Nov 8, 2025 · West Side 93N
Avalanche
- Trigger Type
- natural
- Avalanche Size
- 2
- Start Zone Aspect
- S, SE
- Avalanche Character
- corniceOnly
- Number Of Avalanches
- 1
- Avalanche Observation
- 12hrsAgo
- Start Zone Elevation Band
- alp
- Avalanche Occurrence Datetime
- 2025-11-08T18:00:00.000Z
Ice season is on! While climbing aimless gully this morning we observed a cornice failure on the south aspect of the Onion. There was significant runout reaching near valley bottom.