A tornado in Texas in May, 2015. (IMAGE) U.S. National Science Foundation Caption Atmospheric scientists collect rapid-scan data from a tornado in Texas in May, 2015. Credit University of Oklahoma 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.