The SPC has areas across Northern Middle TN and SCK in a Slight risk for severe storms during the Sunday period. From reading the discussion they put with each of these outlooks, it appears we may be looking at a one-two punch.
They mention that early on Sunday morning, an ongoing MCS looks to be occurring somewhere in the mid/lower Ohio Valley region. If that transpires in the "lower portion", then we could see that roll through here, but with it hitting in the early morning hours...I am unsure how strong it may be, but it helps with it hitting us, if at all, at the the least most favorable time for severe storms. But too, it could possibly form north of us in Central KY and race SE and miss us all together and that is a realistic scenario, and most likely one, as well.
Then during the day on Sunday, we could see a few strong to severe storms "pop" in the heating of the atmosphere mainly during the afternoon hours. We will have to watch the storms back up to our NW as well, because those storms will have the chance at forming into an MCS and charge its way SE into SCK and Northern Middle TN and bring with it a high wind and hail chance.