Enhanced Fujita scale
On April 27, 2011, Tuscaloosa was hit by a tornado rated EF4 on the Enhanced Fujita scale, which left a large path of complete destruction but spared the campus. Six students who lived on off-campus premises were confirmed dead by the university. Due to the infrastructural damage of the city (approx. 12% of the city) and the loss of life, the university canceled the rest of the spring semester and postponed graduation.