A surface front will linger over the area on Thursday, with additional waves of showers and storms along the front. Depending on how storms evolve on Wednesday night, conditions may be favorable for additional severe storms Thursday/Thursday night. A flash flood threat will increase with additional waves of showers and storms. 

Along a frontal zone, a wide swath of strong to severe storms is anticipated.
region spanning the OH/TN Valleys, Mid-MS Valley, ArkLaTex, and the Mid-Atlantic. Damaging gusts and hail are the primary risks, though there could be a few tornadoes.

Several clusters of strong to severe storms are possible along the front with a primary risk of damaging winds, considering the model differences.