Seymour Slack-Country
Avalancherlangfor · Dec 20, 2016 · North Shore
Quick report
- Weather
- warm
- Ride Type
- mellowSlopes, denseTrees, sunnySlopes
- Stayed Away
- convexSlopes, openTrees, steepSlopes
- Riding Quality
- good
- Snow Conditions
- windAffected, heavy, wet
- Avalanche Conditions
- avalancheConditionSound, avalancheConditionSnow, avalancheConditionSlab, avalancheConditionTemp
Weather
- Avg Temp
- -1
- Wind Speed
- windSpeedLight
- Sky Condition
- scatteredClouds
- Wind Direction
- SW
- New Snow24 Hours
- 30
- Storm Start Date
- 2016-12-17T20:00:00.000Z
- Temperature Trend
- falling
- Precipitation Type
- none
Snowpack
- Depth
- 280
- Obs Type
- point
- Site Aspect
- N
- Test Fracture
- sudden
- Site Elevation
- 1250
- Ski Penetration
- 30
- Test Initiation
- easy
- Foot Penetration
- 55
- Cracking Observed
- 1
- Test Failure Depth
- 35
- Site Elevation Band
- tln
- Surface Conditions
- newSnow
- Test Failure Layer Crystal Types
- surfaceHoar
STE down 35cm. CTE5 on this layer as well - sudden collapse on .5mm SH layer. STE SP down 55 cm on SH layer. STE SP down 65 cm on another SH layer. snowpack test dug on 20 degree slope down 85cm.
Avalanche
- Run Length
- 4
- Slab Width
- 2
- Trigger Type
- natural
- Wind Exposure
- leeSlope
- Avalanche Size
- 1
- Slab Thickness
- 35
- Trigger Sub Type
- accidental
- Start Zone Aspect
- S, N, E, W
- Start Zone Incline
- 40
- Avalanche Character
- stormSlab, windSlab
- Number Of Avalanches
- 6-10
- Start Zone Elevation
- 1250
- Weak Layer Burial Date
- 2016-12-17T20:00:00.000Z
- Avalanche Observation
- 12hrsAgo
- Weak Layer Crystal Type
- surfaceHoar
- Start Zone Elevation Band
- tln
- Avalanche Occurrence Datetime
- 2016-12-19T02:00:00
Both natural and skier/snowshoe triggers with crowns ranging from 30-40cm and widths of 2-4m. Reports of shooting cracks while breaking trail.