– Nine states across the southern Plains are under the threat of severe thunderstorms, with parts of Arkansas and Oklahoma, in particular, threatened by storms capable of generating a few tornadoes Tuesday evening. Tornado Warnings are indicated by a red box, while Tornado Warnings with a confirmed tornado are indicated by a purple box. (FOX Weather)The SPC has issued a Level 3 out of 5 risk of severe thunderstorms for that area, which includes Fort Smith and Little Rock in Arkansas. This graphic shows the severe weather threat for Tuesday, Sept. 23, 2025. This graphic shows parts of Oklahoma and Arkansas at greatest risk of strong tornadoes.