On the 9th, my glider was hit by a dust devil in the LZ, just after landing and parking it. Fortunately had an early warning, heard Kathy indicate inbound, so i ran back around the wing and grabbed the nose wires, holding the wing about parallel with the ground. Mike Rapp responded quickly and held the keel down. Together, we managed the keep the thing grounded, but it took a whole lot of effort and that lasted about 10 seconds. Thank you Kathy and thank you Mike!
Now, with us Hangs parked near the shade structure where people congregate, maybe it would be prudent to have a strip of several tie-down points about one wingspan away from the structure? Mid-day landers could then tie their wing down to prevent loss of equipment or possible serious injury due to unpredictable dust devil events which are equally common and hazardous this time of year.
I've thought about this risk at the 750 launch a while ago (being there alone) and drove a piece of rebar with a loop welded to the top of it deep into the ground. I always tie in when setting up or waiting on conditions. Stand at the streamer pole, heading toward left leg of CSS sign, walk 20 paces, move the biggest rock you see, its there. One problem i can think of with a tie-down in the LZ is that the lawn mower might not like steel loops just above the ground. Perhaps a small "no mow" strip? Or maybe they can be placed low enough down?
The situation on the 9th was handled well and kept under control, due to Kathy's vigilance and Mike and I being nearby enough. However I believe there is a more general danger of such events and less fortunate outcomes are possible; let's come up with an elegant solution to contain this real risk to our equipment, pilots and bystanders.