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Avalanche: White Pine

Observer Name
Greg Gagne - Russ Costa
Observation Date
Thursday, March 7, 2019
Avalanche Date
Thursday, March 7, 2019
Region
White Pine
Location Name or Route
White Pine
Elevation
9,500'
Aspect
Northwest
Slope Angle
Unknown
Trigger
Natural
Avalanche Type
Soft Slab
Avalanche Problem
New Snow
Weak Layer
New Snow/Old Snow Interface
Depth
20"
Width
300'
Vertical
600'
Comments
Came across this natural avalanche on a northwest aspect. Apparently it was triggered from a natural avalanche up higher on a cross-loaded slope, and as the debris ran downhill, it sympathetically pulled out a larger/wider slide down low on the slope. Crown averaged 40-60 cms (16-24") and it ran on a layer of weaker snow from the Saturday storm. The starting zone appeared to have been cross-loaded from westerly winds.
Video

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