Heat advisory in effect for much of Kentucky

LOUISVILLE, Ky. (AP) - Much of Kentucky is under a heat advisory as indexes rise above 100 degrees.

The National Weather Service in Louisville has issued the advisory for the afternoon and evening on both Friday and Saturday.

The heat index is a measure of how hot it feels when relative humidity is factored in with the actual air temperature. The weather service says the combination of hot temperatures and high humidity can make heat exhaustion or heat stroke possible.

Residents are being advised to wear lightweight and loose-fitting clothing, stay in an air-conditioned room and drink plenty of water.