Operations are returning to normal at O'Hare International Airport after high winds forced officials to shut down most runways, causing arrival delays of more than two hours on average.

The Chicago Tribune reports (http://trib.in/1PAfF4G ) planes were taking off and landing on the east-west runways Wednesday afternoon after strong crosswinds forced them to close earlier in the day.

City and Federal Aviation Administration officials say strong crosswinds severely affect O'Hare operations only a small percentage of the year, but create havoc for passengers and airline schedules when the runways are closed.

Officials say more than 230 flights were canceled earlier Wednesday and some planes bound for O'Hare were diverted to other airports.

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Information from: Chicago Tribune, http://www.chicagotribune.com