Scared Passengers Tweet From O’Hare Tarmac During Derecho The Weather ChannelNWS: 6 tornadoes touched down in Chicagoland on Sunday night, including 2 in Chicago WGN TV ChicagoChicago weather: Strong storms spark tornado warnings, take out power for more than 300K across area WLS-TVAs O’Hare sheltered in place during storm, passengers rode the winds out aboard planes: ‘It felt very vulnerable’ Chicago Tribune