A strong front will bring the threat of isolated damaging wind gusts, and even brief spin-up tornadoes along the main line of storms.
Early indications suggest at least an inch of rain for much of the region. The most rain -- two inches or more -- would occur in northwest Tennessee, and along the border with Kentucky from Murray eastward.
If conditions come together, we could see a severe storm or two. The main hazard should be strong winds.
On the Net:
Paducah Weather Service webpage