Tumalo Full Profile

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Updated:
Friday, Jan 11, 2019 4:34 PM
Observer(s):
Phil Bowker
Position:
Pro Ob
Location:
Three Sisters Area (44.009771, -121.643949)
Ob Date/Time:
Fri, Jan 11, 2019 - 3:41 PM
Report Type:
Snow Conditions
Mode of Travel:
Ski or Snowboard

Written Report:
On my tour around Tumalo today I was pleasantly surprised to see the recent storm snow was still in good shape and not so badly affected by wind or surface crusts. The bowl skied very well with an average ski penetration of about 5-10cm. It is worth noting that the southwest winds are forming small cornices on the northeast and east aspects. Below these cornices small wind slabs are forming, on ski cutting they are stubborn to release and a good indicator that windslabs are growing on other lee slopes and should be approached with care. Check out the pictures. Skiing the storm snow in Tumalo bowl I saw no signs of instability in the snowpack.

I dug a pit on the north west aspect of Tumalo below tree line. I did find the buried surface hoar in the snowpack in this specific location, its quite deep down, about 133cm. It was un-reactive during compression tests and extended column tests, but I did get a hard fail with a shear test. Its still worth keeping a eye out for this as you dig around. Check out the photos.

Phil.

Weather & Snowpack
Temperature: -4°C Wind: Southwest @ 0 mph
New Snow: 0 cm Snow Depth: 165 cm Elevation: 7442 ft Aspect/Slope: Northwest / 29°


Multimedia

Caption: Tumalo Snow Profile

Caption: New cornice and wind slab

Caption: Buried surface hoar