The rainy weather has cancelled hundreds of flights and caused delays, especially for travelers at O'Hare trying to get to Missouri. Approximately 500 flights were canceled to destinations all over on Friday. Some extensive delays reached up to 90 minutes.
Operations at O'Hare were returning to normal Saturday .As of 7:30 a.m., ABC7 is told delays topped 30 minutes for some flights. However, all flights to and from St. Louis were canceled as the St. Louis remained closed due to the tornado.
Several people were hurt when the tornado hit. Travelers ran for shelter as a plates of glass were shattering around them.
"The skies went totally black. The wind picked the car up, dropped it and blew out the windows. It happened real fast. A piece of glass hit her," one woman said referring to a little girl she was holding.
"I came outside with a group of people, and we were looking at the sky, and when the wind really picked up, a bunch of us ran downstairs. And that was about when the doors blew in," another traveler said.
"All the windows started blowing out at one time. The next thing we know, we heard crashes and the poles were falling," said a third witness.
It is unclear when the airport in St. Louis will reopen.
All passengers with plans to travel to St. Louis are advised to check with their airlines before heading to the airport.