Update....

After looking at the model data that came out this morning it does look like the MCS will begin moving into the area in the early morning hours between 2 AM and 5 AM EDT.  The same holds true as it did in my forecast this morning the best chances will be in the Southern Valley near Chattanooga with less chances in Northeast Tennessee toward Johnson City.  The Storm Prediction Center has also nudged slight risk south with far Southern Valley including Chattanooga still in the risk area.  I will continue to monitor as system develops.