Left Gully observations

By Tom, A.J., Bill, and Chris

Date of Observation: April 12, 2019  12:00 PM
Location of Observation: Bottom of Left Gully below rock buttress lookers right of the gully and 2nd test in the Gully 100′ above start of actual gully

Overall we found the moisture had not saturated as deeply into the snow pack as we expected. A 20cm layer of saturated snow sat on top of an 18cm layer of softer drier snow. We had clean fractures on all tests with not identical but similar results. Down to the crust from Monday. We ultimately decided we felt there were too many risk factors to set a race course up in Left Gully or to even continue ourselves.It looks like skiers in Right Gully had different conditions but cannot confirm. Attached is a hazard analysis.


ABOUT THESE OBSERVATIONS

Snowpack observations are one part of the complex puzzle which is your decision to enter avalanche terrain. Some observations may include stability tests. It’s important to understand that the results of a stability tests are seldom conclusive anywhere, but particularly in snow climates and terrain like ours where the primary driver of instabilities is wind drifted snow. Many stability tests exist and each works best with specific avalanche problem types. Stability test results should never be used alone as an indication that a slope or conditions are safe particularly when more obvious red flags are present. Please use this page as part of your information gathering process, but don’t make decisions based on a single piece of information. A good article that summarizes some of the issues associated with snow and avalanche observations can be found here.

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