Observer Name
Anna Keeling
Observation Date
Thursday, February 25, 2010
Avalanche Date
Thursday, February 25, 2010
Region
Salt Lake » Big Cottonwood Canyon » Willows » West Willow
Location Name or Route
Elevation
Unknown
Aspect
Northwest
Slope Angle
38°
Trigger
Skier
Trigger: additional info
Unintentionally Triggered
Avalanche Type
Hard Slab
Weak Layer
Surface Hoar
Depth
18"
Width
60'
Vertical
400'
Comments
USA Bowl-Willow- out Bear Trap mix of sun and cloud, occasional snow flurries Skier remote trigger on NW aspect in West bowl of Willow. We were standing on a 31 degree slope but the slide ran on 38 degree slope about 200 feet from skier. Crown 1.5 feet on buried SH, 60 feet wide, ran approx 400 feet into trees Amazing amount of collapsing on south facing aspects all day. We found multiple crusts with facets between, beneath approx 10 inches of new snow. We probably had 15 collapses all day on low angle slopes but saw no cracking associated with this collapsing New snow is quite dense
Coordinates