His research interests focus on atmospheric and climate dynamics, including non-convective high winds, clear-air turbulence forecasting and inertial instability. He received a B.S. in mathematics from the University of Alabama at Birmingham and earned a Ph.D. in atmospheric sciences from the University of Wisconsin-Madison, and was a post-doctoral fellow at Columbia University in conjunction with the NASA⁄Goddard Institute for Space Studies (GISS). Knox has served as an associate editor of the Journal of Geophysical Research-Atmospheres, the National Weather Digest, and the Journal of Geoscience Education. He was the 2010 recipient of the T. Theodore Fujita Research Achievement Award from the National Weather Association.