Supercell and Tornado Image (IMAGE) University of Wisconsin-Madison Caption This is a colorized image of the tornado-producing supercell nearly 20 miles long and 12 miles high. The imagery from the simulation was built upon real world data collected near the May 24, 2011 supercell, which spawned several tornadoes including the EF-5 that touched down near El Reno and Oklahoma City, OK. Credit UW-Madison Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.