May 12
- 1951 – A tornado killed an estimated 200 people in the Faridpur District of Bangladesh.
- 1956 – An F4 tornado moved through the southern edge of Flint, Michigan, killing three people and injuring 116. A minimal F4 tornado moved through Allen Park and Lincoln Park, Michigan, resulting in 22 injuries but no fatalities.
- 1997 – A highly visible F1 tornado moved through downtown Miami, Florida, injuring 12 people. Although no major damage occurred, images of the tornado gained widespread media attention.