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Small Wind Slab Avalanche in Powder Bowl
A small (R1/D1) wind slab avalanche was snowboarder-triggered in steep rocky terrain on the east/southeast flank of Powder Bowl on Green Butte. The crown was approximately 6 inches (15 cm) in height and spanned 20 ft. The runout length was 30 ft. The one finger-hard slab failed on a density change above the new/old snow interface.
As a reminder, even a small avalanche like this one can have consequential results if you are caught and carried into or over a terrain trap (e.g., gully, rocks, cliff, crevasse).
Avalanche Classification Code: SS-ASu-R1-D1-S
Our Gray Butte weather station has recorded 13 hours of moderate (17 - 25 mi/hr) west/northwest winds in the last 24 hours.