This seems to be happening more this year. I wonder how much is putting a lot of tarps on top to keep the rain off performers. Maybe they need to have things that would snap off the cover before it could pull down the trusses as the trusses themselves could probably withstand most winds, but add that huge sail (in the Indiana case, it is an insanely huge roof) that can add a lot of force pulling things down. But if that top snapped off in the high wind before a collapse, all safe but wet.