Name:
Jeff T.
Observation Date:
December 15, 2020
Submitted:
December 15, 2020
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Bench above No Fog
Did you trigger any avalanches?
Yes
Was it intentional?
Yes
Avalanche Type:
Soft Slab
Size:
Size 1: Relatively harmless to people
Elevation:
~4400
Aspect:
NE
Comments:
SS-ASc-R2-D1-l
Slope Angle: 45+ degree convexity
Slab width: 10-15m
Slab Thickness: 15-20cm
Slab Hardness: F
Vertical Fall: 10-12m
Photo:
Did you see shooting cracks?
Yes, Widespread
Did you experience collapsing or whumpfing?
No
The new snow is not bonding well to old snow surfaces. A Hand Shear Test resulted in new snow separating in 3 distinct layers. The two bottom layers on clean interfaces as seen in the attached photo.