Sunday is the tenth anniversary of an outbreak of tornadoes in Oklahoma and Kansas that killed 46 people and caused millions of dollars of damage.
Most of the death and destruction from the May 3, 1999 storms occurred in and around Oklahoma City. But six people also died in Kansas, where a tornado touched down near the small town of Peck and tracked 17 miles, hitting Haysville and Wichita.
The National Weather Service says the storm system spawned 74 tornadoes that day.
Emergency managers in the towns hit by the tornados say the 1999 outbreak helped raise public awareness about installing storm shelters. And forecasters say they learned lessons about tracking a system that cut such a wide and long path across two states.