Plewman Basin windslabs

Avalanche

goinupthegranby · Feb 10, 2020 · Rossland

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Observation photo 1Observation photo 2

Avalanche

Run Length
100
Slab Width
50
Trigger Type
skier
Wind Exposure
leeSlope
Avalanche Size
1
Slab Thickness
20
Trigger Sub Type
intentional
Start Zone Aspect
E
Vegetation Cover
sparseTrees
Avalanche Character
windSlab
Number Of Avalanches
2-5
Start Zone Elevation Band
tln
Avalanche Occurrence Datetime
2020-02-09T13:00:00

Touchy windslabs on Plewman-Elgood col on East aspect at 2150m. Triggered 5 or so from kicking cornices down etc, as well as one canine remote from 3m. Slab resistance 4F, debris run length 100m max with none running the full slope. Windslab sensitivity dissipated up Plewman ridge onto NE slopes as well as up Elgood ridge onto SE slopes. Propagation up to 50+ meters wide, slab thickness typically 20cm but variable. Moderate to strong winds were present immediately prior to triggered windslabs.