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Observation: Mt Nebo Loop Road

Observation Date
12/18/2022
Observer Name
Raylund Smith
Region
Provo » Mt Nebo Loop Road
Location Name or Route
Nebo Loop
Red Flags
Red Flags
Recent Avalanches
Cracking
Poor Snowpack Structure
Avalanche Problem #1
Problem
Persistent Weak Layer
Trend
Same
Problem #1 Comments
Through most mid to upper elevations there is a persistent weak layer at the ground surface that is about 10 to 15in deep with well bonded snow on top of it.
Snow Profile
Aspect
Northeast
Elevation
9,500'
Comments
The snow pack is starting to get some depth to it at upper elevations about 45" on the north, north east slopes and has picked up about 15" of that in the last week. I preformed a sheer test today which failed at the faceted layer on the first pull, then performed an ECT test. The column failed at 22 on the faceted layer. In both tests the upper layers were well bonded and stayed together as a slab after breaking. I forgot to share last week but when performing the same test only feet away from this site the column failed on isolation on the first test and then failed at 3 on the next attempt. Indicating that the upper layers are getting stronger but still sitting on a very weak layer and slopes of 30 degrees or more should be avoided still.
Today's Observed Danger Rating
Considerable
Tomorrows Estimated Danger Rating
Considerable
Coordinates