Thunderstorms are expected to continue to form from central and southwest Oklahoma into adjacent parts of North Texas. Individual thunderstorms will be rather small, but produce heavy rainfall. They will move very little. Additional thunderstorms will likely develop across northern and central Oklahoma through the afternoon. These storms will have a better chance to become severe with larger instability in this region. Storms may eventually grow into a cluster with large hail and damaging winds continuing through the evening and possibly overnight.