Due to the fact that the storm includes lightning, all Guests currently visiting the area are encouraged to remain indoors until the storm moves away. Be sure to check back here on Orlando Theme Park News for additional updates.
It's our (Orlando) afternoon storms that come through almost everyday. They usually last about 30 minutes to a hour. Once they move through, everything reopens. Yesterday's lasted through most of the night though. We can use the rain, so no complaints here.
I have no idea what the statistics are, but this does not seem like an unusual amount at all.