Y Couloir Avalanche
Quick reportd.oliver12 · Dec 7, 2025 · Birkenhead
Quick report
- Weather
- windy, cloudy
- Ride Type
- steepSlopes, alpineSlopes
- Riding Quality
- ok
- Snow Conditions
- windAffected, heavy, powder
- Avalanche Conditions
- avalancheConditionSlab
1 member caught in a size 2 avalanche that was human triggered from the top of Y couloir on Mount Ronayne. Low snowpack resulted in no burial but minor injuries.
Weather
- Wind Speed
- windSpeedStrong
- Blowing Snow
- moderate
- Sky Condition
- overcast
- Snowfall Rate
- 1
- Wind Direction
- SW
- Temperature Trend
- steady
- Precipitation Type
- snow
Snowpack
- Site Aspect
- N
- Ski Penetration
- 30
- Site Elevation Band
- alp
- Surface Conditions
- newSnow
- Test Failure Layer Crystal Types
- crust
Avalanche
- Run Length
- 200
- Slab Width
- 7
- Trigger Type
- skier
- Wind Exposure
- leeSlope
- Avalanche Size
- 2
- Slab Thickness
- 40
- Trigger Sub Type
- accidental
- Start Zone Aspect
- N
- Avalanche Character
- windSlab
- Number Of Avalanches
- 1
- Avalanche Observation
- 12hrsAgo
- Start Zone Elevation Band
- alp
- Avalanche Occurrence Datetime
- 2025-12-07T23:00:00.000Z
Incident
- Group Size
- 4
- Terrain Trap
- noTrap
- Group Activity
- skiing
- Number Injured
- 1
- Number Involved
- 1
- Number Caught Only
- 0
- Number Fully Buried
- 0
- Snow Depth Trigger Point
- average
- Terrain Shape Trigger Point
- planar
- Number Partly Buried Able Breathing
- 0
- Number Partly Buried Impaired Breathing
- 0