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Tam Rim Area

Observation Date/Time:
Thu, Feb 11, 2021 - 7:23 PM
Reporter(s):
JW
Location/Elevation:
Tam Rim Area / 7100'
Report Type:
Snow Conditions   No Avalanche Activity  
Travel Mode:
Snowmobile   Ski or Snowboard  
Temperature:
20°C
Sky Conditions:
Overcast (> 7/8)
Precip Type/Intensity:
Snow / S2 Moderate snow
New Snow:
5-10cm cm
Height of Snow (HS):
150 cm
Wind Direction/Speed:
W / Light: 1-16 mph

Written Report:
Toured around the little three creeks lake area to get an idea of the snowpack before the big storm coming up. I was surprised to see that where I decided to dig a pit there was a persistent weak layer located about 6-8 inches below the surface. This layer was about an inch deep and consisted of rounding facets. This layer proved to be very reactive in tests with a CT6 Q1 and an ECTP12. After the collapse, both of these slid very easily and smoothly. This was my first day of skiing in central Oregon in the last month so I don't know if this could potentially be widespread or just in this isolated spot but I will certainly be staying away from and out from under any avalanche terrain as this layer gets more weight upon it. The pit location was near treeline on an easterly aspect at ~7100 feet. The slab on top of the weak layer was pretty hard with ski penetration at about 2 inches and boot penetration maybe 4-5 inches.