Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Mary
Observation Date:
March 16, 2022
Submitted:
March 17, 2022
Zone or Region:
West South
Activity:
Skiing/Snowboarding
Location:
3 Way Peak

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
No
Avalanche Type:
Hard Slab
Size:
Size 2: Could bury, injure, or kill a person
Elevation:
upper
Aspect:
NE
Comments:
Crystal Mountain, 3 way peak. NE facing, maybe ENE? 100'ish wide crown, 1-1.5' deep slab depth, debris traveled the whole run over the cliffs and into the flat, maybe 750' long...

Signs of Unstable Snow

Did you see shooting cracks? 
No
Did you experience collapsing or whumpfing? 
Yes, Isolated

Observations

RAPID warming and full sun on ridge line / S facing during that day. Wind loading from the storm two days prior.
I was boot packing up to 3 way peak, almost ready to strap in and ride. I had felt one isolated whomf about 10 steps down from the photo, and then possibly another a few steps before the photo. I was pretty sure something was going to slide. The slide happened right after the hiking photo. I was planning to ski cut the top before entering the gully I wanted to ride. When I was a few steps away from where I was going to strap in the snow cracked and slid out from under me, I dug my board in and took a few steps down slope and to the skiers right to get out of the path. The slide propagated about 100ft down the ridge, and the crown was about 1-1.5' deep. The slab was moving fairly slow but broke in big dense chunks. We didn't stick about to check it out because there was a small crack above us so we carefully strapped in and rode down to a safe spot. It seemed like it ran on a weak crust and/or faceted layer. There was definitely wind affect as well. We got out of there and saw a bunch of debris piles at the bottom, (that run right across where everyone traverses which is pretty sketch...) some piles were deeper than others.

Media

Public Field Report: 3 Way Peak
Public Field Report: 3 Way Peak
Public Field Report: 3 Way Peak

Advanced Observations

Observed Avalanche Problem #1: 
Wind Slab
Comments: 
3/14+15 storm and wind
Observed Avalanche Problem #2: 
Storm Slab
Comments: 
3/14+15 storm and wind
Observed Avalanche Problem #3: 

Comments: 
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