Observer Name
Jim
Observation Date
Sunday, January 13, 2013
Avalanche Date
Friday, January 11, 2013
Region
Salt Lake » Big Cottonwood Canyon » Broads Fork » Diving Board
Location Name or Route
Diving Board
Elevation
10,300'
Aspect
East
Slope Angle
34°
Trigger
Natural
Avalanche Type
Hard Slab
Avalanche Problem
Persistent Weak Layer
Weak Layer
Facets
Depth
2.5'
Width
300'
Vertical
1,250'
Comments
Walked up Broads & came across a natural slide on the apron below Diving Board. I'm guessing it may have happened Friday overnight. It started on the rock slabs above the apron where two crowns were visable, maybe 30'-50' in width. Dropped through the choke where it propagated to about a football field wide and ran almost full track. Slide snow looked to all be snow that had fallen on top of our high pressure facets. There was new snow on the debris (a dusting) equal to what had fallen Saturday. Maybe west winds Friday formed a wind slab that dropped and started it? With a safe place for an up track and no hangfire, we proceeded up and skied the left flank of the slide. Snow was super slow due to cold temps and some clinkers in there. May have been debris from smaller wind slabs that had come down or maybe old tracks as this place was worked end to end over New Years weekend.
Coordinates