Avalanche in Little Simpsons Gulch

Quick report

adam.robert.katz · Feb 17, 2024 · Purcells

View on map
Observation photo 1Observation photo 2Observation photo 3

Quick report

Weather
sunny
Ride Type
alpineSlopes, convexSlopes, openTrees, steepSlopes, sunnySlopes
Riding Quality
good
Snow Conditions
crusty, windAffected
Avalanche Conditions
avalancheConditionSlab

Close call today. See avalanche section of report for details

Avalanche

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
sparseTrees
Start Zone Incline
45
Avalanche Character
persistentSlab
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

We were confident from the forecast and skiing a high consequence line in 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.