More than 150,000 ComEd customers were still without power Friday morning as severe storms hammered the city and surrounding areas. Tornadoes ripped through communities just to the south, east and west of Chicago, and hundreds of flights were canceled or delayed. At Chicago airports, at least 115 flights were canceled and at 155 more were delayed at O’Hare, while at leat four were canceled and 32 more delayed at Midway as of 9:10 a.m. Friday.