Every severe weather report published for Overton County, Tennessee, newest first.
The National Weather Service warns that afternoon heat index values could reach 105 degrees in parts of East Tennessee, posing a risk of heat illness until 8 p.m. EDT Friday.
The National Weather Service warns of heat illnesses as heat index values reach 109 from Wednesday through Friday across Middle Tennessee.
Official records warn of heat index values up to 108 in a developing weather situation.
The National Weather Service has pushed the advisory's end time back to 7 p.m. Sunday, August 16, covering Nashville, Clarksville and more than two dozen counties.