* WHAT. A prolonged period of hot conditions with heat index values around 100 degrees. * WHERE. Portions of east central and southeast Indiana, northeast and northern Kentucky, and central, south central, southwest, and west central Ohio. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. The combination of temperatures in the 90s and high humidity will increase the threat of heat illnesses.

* WHAT. A prolonged period of hot conditions with heat index values around 100 degrees. * WHERE. Portions of east central and southeast Indiana, northeast and northern Kentucky, and central, south central, southwest, and west central Ohio. * WHEN. Until 8 PM EDT Saturday. * IMPACTS. The combination of temperatures in the 90s and high humidity will increase the threat of heat illnesses.

The combination of near-record high temperatures and ongoing humidity will result in peak heat index values around 100 degrees this afternoon and early evening across southern Indiana and central Kentucky. It is recommended to drink plenty of water, stay cool during the hottest part of the day, and limit sun exposure. Special attention should be given to those most vulnerable to the heat, like children and the elderly.

The Indiana Department of Environmental Management has declared an Air Action Day, until midnight EDT tonight. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional actions and information, please visit the IDEM Smog page at: https://www.apps.idem.in.gov/smogwatch.

The Indiana Department of Environmental Management has declared an Air Action Day, until midnight EDT Friday night. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional actions and information, please visit the IDEM Smog page at: https://www.apps.idem.in.gov/smogwatch.

The Louisville Metro Air Pollution Control District and the Indiana Department of Environmental Management have issued an Air Quality Alert. IN EFFECT UNTIL 1 AM EDT SATURDAY. A Code Orange Air Quality Alert for Ozone has been issued for the Louisville Metro Area. Members of sensitive groups may experience health effects. The general public is not likely to be affected. Sensitive groups include the elderly. children. persons with asthma or other breathing problems. and persons with lung and heart disease. People in these groups are advised to limit their outdoor activities to reduce their exposure to ozone and particulate pollution. For more information, visit the Louisville Metro Air Pollution Control District at http://www.louisvilleky.gov/apcd or the Indiana Department of Environmental Management at http://www.in.gov/idem.

The Indiana Department of Environmental Management has declared an Air Action Day, until midnight EDT Friday night. Levels of ozone within the region may approach or exceed unhealthy standards. On Alert days, help reduce ozone by taking the following actions: * Carpool, if possible, bike, walk or take the bus instead of driving alone. * Refuel your vehicle after 8 pm. * Do not idle your vehicle, exhaust contributes to air pollution. * Mow your lawn in the evening hours and avoid the use of gas-powered lawn equipment. For additional actions and information, please visit the IDEM Smog page at: https://www.apps.idem.in.gov/smogwatch.