Sting Jet Video (video) University of Manchester Loading video... Caption Professor David Shultz, The University of Manchester, explains how cyclones, like the one that battered southern Britain in 1987, can strengthen to become violent windstorms. Credit The University of Manchester Usage Restrictions To be used in conjunction with this piece of research. 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.