Active AlertsKnoxville, TN

What: Afternoon heat index values will reach or exceed 100 across much of the area, with some locations peaking around 105.
Where: Northern Cumberland Plateau and portions of East Tennessee including: Anderson, Campbell, Knox, Morgan, North Sevier, Northwest Blount, Scott TN, and Union Counties.
When: Until 8 PM EDT Friday.
Impacts: Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.