William Gray, Ph.D. is emeritus professor of Atmospheric Science at Colorado State University (CSU), and head of the Tropical Meteorology Project at CSU's Department of Atmospheric Sciences. Gray is noted for his forecasts of Atlantic hurricane season activity. Gray served as a weather forecaster for the United States Air Force, and as a research assistant in the University of Chicago Department of Meteorology. He received an M.S. in meteorology and Ph.D. in geophysical sciences from the University of Chicago.