Thomas P. Grazulis

Thomas P. Grazulis (born 1942) is a meteorologist who has written extensively about tornadoes and is head of the Tornado Project.

He grew up in Worcester, Massachusetts and first confronted the power of a tornado during the Worcester Tornado of 1953 which killed 94 people. He received a bachelor's degree in meteorology from Florida State University and was briefly a broadcaster.

After teaching in New Jersey, he and his wife Doris moved to St. Johnsbury, Vermont.

In 1979 he began working for the Nuclear Regulatory Commission in creating a history of tornadoes. Specifically he worked on updating the databases of historic storms maintained by the National Severe Storms Forecast Center in Kansas City, Missouri as well as the database of Theodore Fujita. The National Tornado Database work was important enough so that it was followed by five years of funding from the National Science Foundation. In the process Grazulis was to chronicle 50,000 tornadoes in a 1,400 page book.

In the 1990s he and Doris formed the Tornado Project to market tornado videos.

In 1997 he became a storm chaser noting that despite his fascination with storms he had never actually seen a tornado.