Observer Name
B
Observation Date
Thursday, April 2, 2020
Avalanche Date
Thursday, April 2, 2020
Region
Salt Lake » Big Cottonwood Canyon » Brighton Perimeter » Back Bowls
Location Name or Route
Old Reliable
Elevation
10,300'
Aspect
Northeast
Slope Angle
Unknown
Trigger
Natural
Avalanche Type
Dry Loose
Avalanche Problem
New Snow
Weak Layer
New Snow/Old Snow Interface
Depth
7"
Width
100'
Vertical
250'
Comments
At 1200 hours the Westerly Winds increased significantly to Strong on the ridgelines as well as down in more protected areas around 9700 feet. Transport increased to Strong (See Photo 1). By 1245 Natural Loose Dry activity commenced on steep Upper Elevation terrain that was receiving both down slope and cross slope loading (See Photo 2). Avalanche reported was relatively small and inconsequential due to the terrain features that allowed it to fan out and not entrain significant loads. Yet, in high consequence terrain like confined narrow long running chutes, this issue may have presented more serious and potential issues.
As well, slope cuts and general riding on slopes steeper than 35 degrees were producing Loose Dry Sluffs running in the light density new snow on firm pre-storm bed surfaces.
Coordinates