Swift river rd. area
AvalancheWesley Gregg · Dec 28, 2019 · Quesnel
Weather
- Avg Temp
- -9
- Min Temp
- -14
- Wind Speed
- windSpeedLight
- Blowing Snow
- light
- Sky Condition
- brokenClouds
- New Snow24 Hours
- 3
- Storm Snow Amount
- 20
- Temperature Trend
- steady
- Precipitation Type
- snow
Snowpack
- Depth
- 205
- Obs Type
- point
- Site Aspect
- NE
- Test Fracture
- sudden
- Site Elevation
- 1844
- Test Initiation
- veryEasy
- Cracking Observed
- 1
- Test Failure Depth
- 20
- Site Elevation Band
- tln
- Surface Conditions
- newSnow
- Whumpfing Observed
- 1
- Test Failure Layer Crystal Types
- surfaceHoar
The new storm slab that developed was extremely reactive. Shooting cracks and whumphing was observed over the prior and current day. Overnight multiple NA occurred most starting from a tree bomb and gaining mass and width. The largest of which was in a bowl that spanned 200+m Our pit objective was to find the pwl below the storm slab. Cte 1, sp, sh down 20cm F for 15cm, 4f 5cm, then the easily notable SH LAYER. Ctm10, uneven, down 60cm. In this location the snowpack was pretty consistent layers weren’t as easily identifiable. The pit was at 1844m on a NE aspect, slope approx 28deg.
Avalanche
- Run Length
- 150
- Slab Width
- 1
- Trigger Type
- skier
- Wind Exposure
- leeSlope
- Avalanche Size
- 2
- Slab Thickness
- 20
- Trigger Sub Type
- intentional
- Start Zone Aspect
- SW
- Vegetation Cover
- openSlope
- Start Zone Incline
- 32
- Avalanche Character
- stormSlab
- Number Of Avalanches
- 1
- Start Zone Elevation
- 1550
- Weak Layer Crystal Type
- surfaceHoar
- Start Zone Elevation Band
- btl
- Avalanche Occurrence Datetime
- 2019-12-27T18:10:00
Observed shooting cracks and whumphing during the climb. Intentionally ski cut a convexity to initiate a reaction.