Avalanche: South Monitor Bowl

Observer Name
mark white
Observation Date
Friday, March 29, 2019
Avalanche Date
Friday, March 29, 2019
Region
South Monitor Bowl
Location Name or Route
South Monitor
Elevation
9,700'
Aspect
North
Slope Angle
36°
Trigger
Natural
Trigger: additional info
Cornice Triggered
Avalanche Type
Soft Slab
Avalanche Problem
New Snow
Weak Layer
Density Change
Depth
2'
Width
60'
Vertical
Unknown
Comments
This soft slab was triggered by a natural cornice drop in the afternoon, 60ft wide, 2 foot crown in the deepest part vertical unknown due to visibility. The weak layer was the density inversion that was buried in this wind loaded terrain a couple feet down, the wind loading in both Monitors was pretty impressive, loading both slopes quite a ways down off the ridge line. I would expect these instabilities to settle out rapidly when the high PI rates finally subside.
photos: crown and the track

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