A multi-day outbreak of severe thunderstorms that rocked the Midwest has shifted toward Oklahoma and will continue into early next week. According to the National Weather Service in Norman, the first round of severe weather on Sunday,

By Tuesday, more than four million will be under the highest risk of severe storms and tornadoes across central and eastern Oklahoma and into the Ozarks. Officials are warning of "significant multi-hazard severe weather including tornadoes - some potentially strong to intense - very large hail and severe winds".