* WHAT. Heat index values up to 102 expected. * 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 this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

At 540 PM EDT, a strong thunderstorm was located 8 miles south of Xenia, moving east at 30 mph. HAZARD. Wind gusts up to 40 mph and frequent cloud-to-ground lightning. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Lightning can cause serious injury or death. Locations impacted include. Wilmington, Sabina, Jamestown, Jeffersonville, New Jasper, Bowersville, Port William, Milledgeville, Octa, Paintersville, Melvin, Rosemoor, Bloomington, Middleton Corner, Lumberton, Oakland, Jasper Mills, Lees Creek, Reesville, and Kingman. This includes I-71 in Ohio between mile markers 43 and 71. If outdoors, consider seeking shelter inside a sturdy building. When thunder roars, go indoors! Do not stay in the open or seek shelter under trees when lightning threatens. To report hazardous weather conditions, go to our website at weather.gov/iln and submit your report via social media, when you can do so safely.

* WHAT. Heat index values up to 101. * 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 this evening. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses.

* WHAT. Heat index values up to 107 expected. * WHERE. In Indiana, Jefferson County. In Kentucky, Trimble and Henry Counties. * WHEN. From 1 PM EDT /noon CDT/ to 8 PM EDT /7 PM CDT/ today. * IMPACTS. Hot temperatures and high humidity may cause heat illnesses to occur.

Hot and humid conditions are expected to be greatest on Wednesday afternoon across southern central Indiana. High temperatures in the low 90s with heat index values at least briefly in excess of 100 degrees may be hazardous for sensitive and vulnerable populations. Take extra precautions if spending extended time outside during the afternoon today.