Touchy wind slab

Widespread wind affect in the alpine. Strong winds all day. Skied a small test slope as first run next to a steeper rocky terrain feature. 1st skier initiated small wind slab at edge of steeper rocky slope and was able to ski out to side. Surprising propagation through the rocks and over to other side. Almost 100m across, only ran approx 30m at longest. Crown depth 5-60?cm. My guess is size 1.5, did not run very far. Trying to submit photos on app, not sure if working.