I'm not a Meteorologist or have any formal weather training. I'm just a gal who loves to weather watch. That being said, there are a lot of variables with this system which probably will not become clear until tonight or early tomorrow.

This is what they are saying at the moment..

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS FOR MIDDLE
TENNESSEE LATE WEDNESDAY NIGHT. A STRONG COLD FRONT IS EXPECTED TO
MOVE ACROSS MIDDLE TENNESSEE LATE WEDNESDAY NIGHT AND INTO
THURSDAY MORNING. IT IS A GROWING POSSIBILITY THAT SEVERE STORMS
WILL OCCUR ALONG AND JUST AHEAD OF THE FRONTAL PASSAGE.
CURRENTLY...IT APPEARS THAT THE POTENTIAL FOR SEVERE WEATHER WILL
OCCUR AS EARLY AS 1 AM TO 4 AM EARLY THURSDAY MORNING ACROSS OUR
WESTERN MOST AREAS. THE ACTIVITY WILL THEN MOVE EASTWARD ACROSS
THE REMAINDER OF THE MID STATE BY MID MORNING ON THURSDAY.