Flights leaving Houston's Bush Intercontinental Airport returned to normal about 5 pm Tuesday, but more delays are expected as flight schedules catch up to normal.
The standby order from the Federal Aviation Administration resulted in a Ground Stop because of thunderstorms that rendered runways possibly hazardous.
The federal order was issued while some strong storms moved through northern Harris County, delaying a number of flights that also caused delays in later takeoffs and in plane landings too.