The storms were pretty bad. It blew passed me about an hour ago, still raining as we speak, but those ominous clouds and strong winds have subsided.
I'd say, expect your parents to be late. ;-)
Just sent an SMS to my dad...he said they then were told at least 4 hours late through ORD...so they tried rerouting through DEN. As they were trying that, they closed DEN airport as well...
They are now staying overnight again in Ohio and hoping to get out tomorrow through ORD...They just wish they had gotten stuck in Chicago to go eat all their foods they love there from when we had lived there! Ha!