Where the Sidewalk Ends
Quick reportAlso_Scared · Dec 15, 2024 · Glacier
Quick report
- Weather
- cloudy
- Ride Type
- alpineSlopes, steepSlopes
- Riding Quality
- good
- Snow Conditions
- deepPowder, powder
- Avalanche Conditions
- avalancheConditionSound
Weather
- Avg Temp
- -7
- Max Temp
- -5
- Min Temp
- -10
- Wind Speed
- windSpeedLight
- Blowing Snow
- light
- Sky Condition
- brokenClouds
- Snowfall Rate
- 1
- Wind Direction
- W
- Temperature Trend
- steady
- Precipitation Type
- snow
Snowpack
- Depth
- 70
- Obs Type
- summary
- Site Aspect
- NE
- Site Elevation
- 2100
- Ski Penetration
- 28
- Foot Penetration
- 50
- Cracking Observed
- 1
- Site Elevation Band
- alp
- Whumpfing Observed
- 1
Avalanche
- Run Length
- 298
- Slab Width
- 40
- Trigger Type
- skier
- Wind Exposure
- leeSlope
- Avalanche Size
- 2
- Slab Thickness
- 30
- Trigger Sub Type
- accidental
- Start Zone Aspect
- NE
- Trigger Distance
- 30
- Vegetation Cover
- openSlope
- Start Zone Incline
- 45
- Avalanche Character
- deepPersistentSlab, windSlab
- Number Of Avalanches
- 1
- Start Zone Elevation
- 2200
- Runout Zone Elevation
- 2000
- Avalanche Observation
- 12hrsAgo
- Start Zone Elevation Band
- alp
- Avalanche Occurrence Datetime
- 2024-12-15T18:00:00.000Z
Wind slab avalanche that stepped down to the deep persistent layer. See incident report.
Incident
- Group Size
- 2
- Terrain Trap
- noTrap
- Group Activity
- skiing
- Number Injured
- 0
- Number Involved
- 2
- Number Caught Only
- 1
- Number Fully Buried
- 0
- Snow Depth Trigger Point
- average
- Terrain Shape Trigger Point
- planar
- Number Partly Buried Able Breathing
- 1
- Number Partly Buried Impaired Breathing
- 0
Attempted to climb "Where the Sidewalk Ends." Skinned up the lower approach slopes south of the approach gulley and observed several shooting cracks propagating <1m. Upon transitioning into the steep gulley fan (~45 degrees), we observed a small settlement. Several minutes later, we triggered a wind slab (20cm thick) settlement that propagated ~30m above us and slid. This slab stepped down to the bottom of the snowpack (70cm) and slid 300 vertical metres to the bottom of the path. One member of the party caught the edge of the avalanche and floated a short distance. The other member of the party was caught and carried to the bottom of the slide path. No serious injuries.