Northwest Avalanche Center

Observation: Public

All Observations

Observation Details

Name:
Daniel Schlitt
Observation Date:
February 18, 2023
Submitted:
February 18, 2023
Zone or Region:
Snoqualmie Pass
Activity:
Skiing/Snowboarding
Location:
Pineapple Pass

Triggered Avalanches

Did you trigger any avalanches? 
Yes
Was it intentional? 
No
Avalanche Type:
Soft Slab
Size:
Size 1: Relatively harmless to people
Elevation:
5000
Aspect:
NW
Comments:
In the Great Scott Bowl on a NW face below Pineapple Pass. 6in to a 1ft deep. Width 60ft, length 20ft. Snow stopped moving shortly after releasing.

Signs of Unstable Snow

None reported

Observations

We were descending from Pineapple Pass hugging the base of the cliffs on the skiers right. We had observed numerous pillows and signs of wind slab avalanche potential. The wind was blowing hard from the south, over Pineapple Pass. The new snow was soft and easy to make turns in. While I was still below the rocky cliffs on the skiers right of the Great Scott bowl, I triggered this D1 avalanche. It didn't have much energy and stopped moving downhill within 50ft because the bowl mellowed out. The soft slab propagated surprisingly far ahead of me and the snow ran around and past me as I continued traversing along the side of the bowl.

Media

Public Field Report: Pineapple Pass

Advanced Observations

Observed Avalanche Problem #1: 
Wind Slab
Comments: 
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