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Avalanche: Pioneer Ridge

Observer Name
B
Observation Date
Saturday, November 30, 2019
Avalanche Date
Saturday, November 30, 2019
Region
Salt Lake » Big Cottonwood Canyon » Pioneer Ridge
Location Name or Route
North Ridge Pioneer
Elevation
10,200'
Aspect
Northeast
Slope Angle
Unknown
Trigger
Unknown
Avalanche Type
Hard Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
unknown
Width
1,000'
Vertical
Unknown
Comments
Noticed this very large/wide slide at 1600. It definitely wasn't there yesterday, and either someone remotely triggered it while ascending the North Ridge, or it went naturally last night during the heavy PI and NW wind event. It appeared to have propagated almost the entire rider's left wall from the upper section of the Pioneer Main Chute down to the Healing Shot. Picture 1 shows the crown in sections very well, but the light and clarity was poor due to low cloud cover. Picture 2 shows annotation noting what was more visible by the naked eye. It was difficult to see if it traveled all the way to the top of the rider's left wall of the Pioneer Main Chute.
Of note, the widespread collapsing on the northerly aspects appeared to have settled out significantly since yesterday; yet collapsing was still observed on the southerly aspects.
Coordinates

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