A significant tornado ripped its way through towns south of Oklahoma City on April 19, killing at least one person and sparking warnings from the National Weather Service to immediately take shelter.Video filmed by Chad Casey, north of Woody Chapel near Nelson, Oklahoma, shows dark rotating clouds.The McClain County Sheriff’s Office confirmed at least one death in Cole, according to ABC 7.The National Weather Service issued a tornado watch for the area on April 19 until 11 pm. A severe thunderstorm warning was also in place until 7.45 pm. Credit: Chad Casey via Storyful