fbpx Tumalo from Vista Butte | Central Oregon Avalanche Center (COAC)
Observation Date/Time:
Wed, Dec 9, 2020 - 9:38 PM
Evan Samuelson
Three Sisters Area / 6500'
Report Type:
Snow Conditions  
Travel Mode:
Ski or Snowboard  

Written Report:
Our group of four toured from Vista Butte to Tumalo Mountain with the intention of skiing low angle trees on E-SE aspects. We were hopeful that the early morning low temperatures would help consolidate and solidify the recently saturated snowpack and give us a few good turns. After gaining one of the sub ridges it was apparent that the wind had transported about 15 cm of fresh snow to the E-NE. We did not observe any cracks or whomping while climbing.

Two pits were dug at 6500 facing east on a 27° slope. Skies were clear and there was no noticeable wind. Snowpack was approximately 110 cm deep. 15-20 cm of unconsolidated light snow was formed on top of a significant rain crust. We were concerned with a noticeable 4F segment sandwiched between two P sections 35 cm down. CT revealed a RP after 22 loading steps at 35 cm. Culprit looked like wet facets (don't quiz me!). ECT did not replicate the RP or result in any fractures. The underlying snow was wet, but seemed to be consolidating and freezing nicely.

We were treated to two of the best low angle tree runs "ever" coming down the SE-E side of Tumalo Mountain getting back to Vista Butte at dusk.

No signs of avalanches throughout the day.