The month of May 2003 brought an unprecedented number of tornadoes to the United States. Oklahoma received its fair share, including tornadoes that struck the Oklahoma City metropolitan area in successive days. Other areas of the state received significant severe weather as well.
The Storm Prediction Center, an office of the National Weather service which has responsibility to monitor and forecast severe weather for the entire United States, compiled the reports of severe weather for this outbreak. For the period of May 8-10, SPC reported: