 Grazulis is a Fellow of the American Meteorological Society (AMS) and was on the Fujita Scale Forum of the Fujita Scale Enhancement Project; which developed the Enhanced Fujita Scale to supplant the original Fujita Scale.Grazulis initially produced documentaries on the Earth sciences before focusing on tornadoes and publishing books.He expanded to direct-to-video documentaries (which include extensive printed guides) and posters (with complementary background sheets) in the 1990s.