2016 Katie tornado
| The tornado at near-peak intensity in southern Katie | |
| Meteorological history | |
|---|---|
| Formed | May 9, 2016, 3:06 p.m. CST (UTC–06:00) 21:06Z | 
| Dissipated | May 9, 2016, 3:27 p.m. CST (UTC–06:00) 21:27Z | 
| Duration | 21 minutes | 
| EF4 tornado | |
| on the Enhanced Fujita scale | |
| Highest winds | 170 mph (270 km/h) | 
| Overall effects | |
| Fatalities | 1 | 
| Injuries | None | 
| Damage | ~$1,000,000 (2016 USD) | 
| Areas affected | Katie, Oklahoma and areas southwest of Wynnewood, Oklahoma | 
| Part of the Tornadoes of 2016 and Tornado outbreak of May 7–10, 2016 | |
During the late afternoon hours of May 9, 2016, a violent multi-vortex EF4 tornado struck southern Katie, Oklahoma. The tornado was extremely erratic and killed one person while causing $1,000,000 (2016 USD) in damages. The tornado was extremely photogenic, and was heavily documented by storm chasers and civilians.
Although the tornado retained high-end EF3 intensity for large portions of its life, it produced a small pocket of intense and violent EF4 damage, making it the first EF4 tornado in Oklahoma since 2013. It was also the first EF4 tornado in 2016, and the only violent tornado of the tornado outbreak of May 7–10, 2016.