SPC going with strong tornado wording for day 2 across AR into MS/OH River Valleys. Majority of soundings support that. It's gonna be a rough one tomorrow into Wednesday.
Tomorrow is going to be intriguing for MS/AL/TN region east of the outlooked area. While soundings support severe weather, there doesn't appear to be a trigger to get storms going. Will have to keep an eye on boundaries from today's rain that might linger into tomorrow. IF we do see any initialization for tomorrow, it'll likely be across far NW AL and N MS.
For Wednesday, flow becomes more unidirectional as the day progresses. So any tornado threat will likely be any discrete cells that get going in the morning toward midday for AL. By the afternoon, when the main squall line gets here, flow will be oriented nearly parallel to the boundary, meaning we'll likely be dealing with a widespread damaging wind threat with hail as a secondary threat. Of course, QLCS tornadoes are a possibility, but the main tornado threat will likely be earlier in the day Wednesday for AL.