Just my word of advice when having to play on a windy day, take the cover off your harp!
I had to play on a very windy day, got my harp to the space for me to set up, turned around to pick up something and the next thing I heard was “BOOM” the cover acted as a sail and my harp fell on to its side. Lucky it was on grass and not on the tuning disk side. No damage done, excect for my heart which was in my pants.