Vincent Cheng, University of Toronto (IMAGE) University of Toronto Caption Vincent Cheng, a postdoctoral fellow in UTSC's Ecological Modelling Lab, along with colleagues at UTSC and Environment Canada, have developed a model that may forecast tornado activity months and even seasons in advance. Credit Ken Jones - U of T Scarborough Usage Restrictions Free to use but please give photo credit 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.