The map above is a look at the Fort Campbell radar and the movement of the cells and lines. The big question is timing. If these storms come in here to late tomorrow...not much in the way of severe weather. If these storms come in here during the overnight hours...the atmosphere may rebound in time for the afternoon pop-up storm chances. I'll be, and maybe Matt, will be keeping a watch on this line and the NWS updates for further changes in this activity. For tonight, you can expect a warm and muggy evening with the storms moving in from the NW as you can tell by the radar. Here's tonight's forecasted high's and rain chances.
Nashville: low 70's; 60% chance
Clarksville: low 70's; 70% chance
Cookeville: upper 60's; 60% chance
Columbia: low 70's; 60% chance
Manchester: low 70's; 50% chance