One the strangest experiences I’ve ever had in drum corps was Allentown in the early 80s back when they morning prelims and evening finals. The night before it rained very much like tonight if not more so. In the morning when arrived at the field, it was still extremely wet. Someone knew someone and before we knew it, a large helicopter from a local military base showed up and started running back and forth across the field for about 30 minutes. Shorty after that the field was dry enough to start prelims. Never happen today.