Avalanche

Avalanche: Super Bowl

Grant Helgeson/Ted ScrogginUintas
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Quick report

Slope Angle
38°

Avalanche

Slab Width
15 m
Weak Layer
Surface Hoar
Trigger Type
Snowmobiler
Vertical Fall
61 m
Avalanche Type
Soft Slab
Slab Thickness
56 cm
Trigger Detail
Unintentionally Triggered
Start Zone Aspect
Northeast
Start Zone Elevation
3078 m

Here's a little more information on the small avalanche Ted & I found in Superbowl. The surface hoar is still in play in some areas.

Ted walks us through a shovel shear and compression test near the crown.

After the initial failure at the ground in our ECT, we noted a second failure plain in the mid-pack. Upon further investigation, we discovered a folded over buried surface hoar layer was the weakness associated with this avalanche.