Almost exactly a year ago, I was at AK during a pretty heavy downpour. We were so proud of ourselves for having ponchos, and were giggling at the people ducking for cover in shops and under building overhangs. We just "ponchoed up" and soldiered on.
I thought, what a great time to ride EE! Well, I got on with no wait, and then realized that riding a fairly fast roller-coaster in the rain isn't for sissies! The rain was pelting (stinging!) my face as we whipped along the track, and I got a terrible case of the giggles. The ride photo showed me scrunched into my poncho, holding most of the hood over my face to protect it from rain pellets! Yuck. So the moral of the story is, it's a great idea to ride some rides during rainstorms, but maybe not fast coasters!