An area of low pressure is expected to come out of the Gulf of Mexico and up the east coast, while another disturbance approaches us from the West in the Thursday - Saturday time frame. These two systems will attempt to pump in a rich plume of moisture from the south and east, setting the stage for heavy downpours with any showers and thunderstorms that develop. No widespread severe weather is expected, but I would not rule out an isolated tornado with this system(s) ... with a somewhat favorable wind field, despite the lack of instability. Remember, you don't need a crap load of instability for rotating updrafts/supercells

Still a lot of certainty, but the potential for the above is certainly there.

12z GFS from this morning valid 00z Friday.