* WHAT...Dangerously hot conditions with peak heat index values up to around 113 degrees. * WHERE...Perry County Illinois. * WHEN...Until 7 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...Daily heat index values will remain elevated in the triple digits into and through the weekend.
* WHAT...Dangerously hot conditions with heat index values up to 111. * WHERE...Portions of south central and southwest Illinois and central and east central Missouri. * WHEN...Until 8 PM CDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.
* WHAT...Dangerously hot conditions with heat index values up to 112 expected. * WHERE...Portions of East Arkansas, North Mississippi, and Southeast Missouri. * WHEN...From 11 AM this morning to 8 PM CDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events.