Over 900 flights delayed and 14 million under flood watch

More than 900 flights were delayed and nearly 14 million Americans remained under flood alerts Sunday night, as damaging storms continued to batter the Midwest. A total of 21 flights were canceled in addition to the more than 900 flights delayed at Denver International Airport on Sunday. Forecasters now warn residents from Kansas through Wisconsin may see 'repeated rounds of heavy rain,' along with hail, damaging winds and even isolated tornadoes overnight.