I consider myself a vacation storm curse in the flesh.
We always get LOTS of storms - long, drawn out, bad storms. I swear we bring them with us.
My best advice is this - if the wind starts picking up and the sky starts looking dark, head for an area that has alot of indoor places close together. In MK, one of the best places to be is Main Street, because you can just float from one shop to the next without going outside.
In Epcot, being near World Showcase is good.
In AK, well, you're almost on your own here. Try for It's Tough to be a Bug or go to Pizzafari and take refuge there.
In MGM, you're pretty safe anywhere, as most things are under cover.
The only rides that I can definitely recall closing are Dumbo, Aladdin, Test Track, Chester & Hester's whole area (which if we were lucky, they'd never reopen

), Kali, Splash - off the top of my head.
Don't worry WDW can be done in a storm, I'm living breathing proof. But it's a little uncomfortable when you're feet are squishing in the puddles. Wear waterproof shoes.
