Heat Advisory issued July 24 at 4:22AM CDT until July 24 at 8:00PM CDT by NWS

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... * WHAT...Heat index values up to 109. * WHERE...Portions of south central and southwest Illinois. Portions of central, east central, northeast, and southeast Missouri. * WHEN...Until 8 PM CDT this evening. * IMPACTS...Hot temperatures and high humidity may cause heat