Alert Details
* WHAT...Heat index values around or in excess of 100 degrees daily; localized values up to near 110 degrees possible Monday and Tuesday. * WHERE...All of southern Illinois, southwest Indiana, western Kentucky, and southeast Missouri. * WHEN...Until 8 PM CDT /9 PM EDT/ Wednesday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...Peak heat index values will be closer to 100 degrees today. Dangerous heat and humidity may also extend into Thursday depending upon the timing of a cold front.