you better run two trains on nighthawk and the rest of the roller coasters tonight or there going to be chaos at carowinds tonight so you better run two.
No rain for tonight, BUT, personally, I don't think that is the REAL reason they run only 1 train on given days. Having said that, I really don't know what the underlying reason is, but I'm finding myself holding back on visits if I think they are only running one train...
