The Roanoke Fire-EMS Department answered 21 swift water rescue calls in two hours, according to department spokeswoman Tiffany Bradbury.
The Roanoke City E-911 Center was in full crisis mode Wednesday afternoon.
E-911 director Mike Crockett said he had 15 dispatchers answering calls during the height of the flash flooding around 5 p.m., double his usual staff for that time.
Members of Roanoke Fire-EMS, the Roanoke Police Department, the city's emergency management director, and a representative from the city streets department all worked together to get resources where they needed to be.
The E-911 Center was in crisis mode for over two hours.