Avalanche in Little Simpsons Gulch

Observed Feb 17, 2024, 12:45 p.m. PST · Northwest Coast

This report was submitted with an older form.

Upper right see the dog’s tracks leaving the slide area, lower left see my tracks leaving the slide area from where I came to a stopThe slide funneled through short trees and continued a long way to valley bottom

Quick report

Comment
Close call today. See avalanche section of report for details
Weather
Sunny
Ride type
Alpine slopes, Convex slopes, Open trees, Steep slopes, Sunny slopes
Riding quality
Good
Snow conditions
Crusty, Wind affected
Avalanche conditions
Avalanche condition slab

Avalanche report

Comment
We were confident from the forecast and skiing a high consequence line on climber’s right of Little Simpsons Gulch on HBM. I was skiing a steep NE facing sunny pitch below a convexity, and it started to slide around me. Might have been triggered by dog above, see first picture. Since I was near the top of the slide, it went past me quickly, and I was able to ride it out on my hip for the short time I was in it. I watched it funnel through short trees below me and continue a long way to valley bottom. No injuries. Slab was ~20cm thick, ~50m wide where it started before funneling into a narrower trap
Run length
600
Slab width
50
Trigger type
Skier
Avalanche size
2.5
Slab thickness
20
Trigger sub type
Accidental
Start zone aspect
NE
Vegetation cover
Sparse trees
Start zone incline
45
Avalanche character
Persistent slab
Number of avalanches
1
Start zone elevation
1300
Runout zone elevation
1000
Weak layer burial date
2024-01-25
Avalanche observation
12hrsAgo
Start zone elevation band
Btl
Avalanche occurrence datetime
2024-02-17T20:45:00.000Z