A heat advisory is in effect today from noon until 9 p.m.

INDIANA — Heat index values this afternoon and evening could hit 108 degrees in parts of central, south-central, southwest, and west-central Indiana, according to the National Weather Service.

The heat index is a measure of how hot it really feels when relative humidity is factored in with the actual air temperature.

The heat advisory for counties south and west of Indianapolis will take place from Noon until 9 p.m. Monday. Indianapolis was not part of the heat advisory. Cities in the advisory area included Bedford, Mitchell, Bloomington, Bloomfield, Jasonville, Loogootee, Shoals, Linton, Seymour, Washington, Nashville, Martinsville, and others.

Hot temperatures and high humidity may cause heat illnesses to occur.

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

Young children and pets should never be left unattended in vehicles under any circumstances.

Take extra precautions if you work or spend time outside. When possible reschedule strenuous activities to early morning or evening.

Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose-fitting clothing when possible. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments.

Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 911.