Swift river rd. area
Observed Dec 28, 2019, 8:55 a.m. PST · cariboos
This report was submitted with an older form.
Avalanche report
- Comment
- Observed shooting cracks and whumphing during the climb. Intentionally ski cut a convexity to initiate a reaction.
- Run length
- 150
- Slab width
- 1
- Trigger type
- Skier
- Wind exposure
- Lee slope
- Avalanche size
- 2
- Slab thickness
- 20
- Trigger sub type
- Intentional
- Start zone aspect
- SW
- Vegetation cover
- Open slope
- Start zone incline
- 32
- Avalanche character
- Storm slab
- Crust near weak layer
- No
- Number of avalanches
- 1
- Start zone elevation
- 1550
- Weak layer crystal type
- Surface hoar
- Start zone elevation band
- Btl
- Avalanche occurrence datetime
- 2019-12-27T18:10:00
Snowpack report
- Depth
- 205
- Comment
- 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.
- Obs type
- Point
- Site aspect
- NE
- Test fracture
- Sudden
- Site elevation
- 1844
- Test initiation
- Very easy
- Cracking observed
- Yes
- Test failure depth
- 20
- Site elevation band
- Tln
- Surface conditions
- New snow
- Whumpfing observed
- Yes
- Test failure layer crystal types
- Surface hoar
Weather report
- Avg temp
- -9
- Min temp
- -14
- Wind speed
- Wind speed light
- Blowing snow
- Light
- Sky condition
- Broken clouds
- New snow24hours
- 3
- Storm snow amount
- 20
- Temperature trend
- Steady
- Precipitation type
- Snow