Cornice Fall Marriott Basin

Quick report

lionel.d.jensen · May 3, 2026 · Duffey

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Avalanche

Trigger Type
natural
Avalanche Size
2.5
Start Zone Aspect
N
Avalanche Character
corniceWithSlab
Number Of Avalanches
1
Start Zone Elevation
2200
Runout Zone Elevation
1800
Avalanche Observation
24to48hrsAgo
Start Zone Elevation Band
alp
Avalanche Occurrence Datetime
2026-05-05T01:40:00.000Z

Got to watch an impressive cornice collapse and avalanche, standing outside Wendy Thompson hut. Ran to the bottom of the slope. Debris about 80m across. No surprise cornices are dropping with the very warm temperatures. Still impressive to witness.