if you wach the clouds carefully(something i do while waiting)you can see them actually build up out of nothing into some that look nasty,after a while you can almost tell when thats going to happen,last summer my friend thought i was nuts when i told him we were gonna get a storm within an hour,well,it ended up being about 45 mins and we were getting soaked,which wasnt all that bad considering it was 95 out right before that, alot of people were out walking in the downpour with us even,i believe it was july 6 99 if anyone remebers last year(we eventually ended up in the day area in raptors line, rode 3rd train after startup!then rode 4 more times in 30 mins!