Staff and passengers at Kansas City International Airport, in Kansas City, Missouri have been evacuated.
The cause is a tornado warning.
Passengers and staff were waiting out the weather danger in garage tunnels underneath the airport grounds.
UPDATE: An all-clear at Kansas City Airport was just announced. Passengers are being brought back into the terminal. Flights are diverting or were on hold.
Kansas City International Airport (KMCI) had 0.21″ of rain in 4 minutes with winds at 41 mph.