Wind slab

Quick report

scottsmacpherson · Jan 12, 2025 · South Coast

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Quick report

Weather
cold, sunny
Ride Type
alpineSlopes, convexSlopes
Stayed Away
steepSlopes
Riding Quality
ok
Snow Conditions
windAffected, crusty

Incident

Group Activity
skiing
Snow Depth Trigger Point
shallow
Terrain Shape Trigger Point
convex

We explored towards Stadium Glacier area but as we gained elevation on the skypilot-copilot col, we encounter wind affected snow and some upside down snowpack characteristics. There was a softer layer in the top 5-10cm, then a much firmer layer 20cm below that, then a soft layer ~10cm in thickness, then a very firm layer below that. After experiencing a point release in that top 5-10cm that ran 10-20 vertical meters, we reouted to shallower slopes at lower elevation. Going over a north north east facing convex roll of 25-30 degree slope angle, at ~1600m elevation, we triggered a size 1 or smaller wind slab, ~20m wide, 15cm at the point of trigger that tapered to 5cm at the edge. No one transported, ran 20 vertical meters