February 21
- 1971 – A violent tornado outbreak killed 121 people in the Southeastern United States. A long-track F5 tornado (possibly a tornado family) killed 47 people and injured more than 500 across northeastern Louisiana and western Mississippi. Inverness, Mississippi was completely leveled with 21 deaths and more than 200 injuries. A long-track F4 tornado (identified as a tornado family by Thomas P. Grazulis) killed 57 people and injured nearly 800 as it traveled 160 miles across western and northern Mississippi and into Tennessee. There were 21 deaths in Pugh City, Mississippi and 14 on a plantation near Cary, Mississippi.