* WHAT...Dangerously hot conditions for a third consecutive day, with afternoon and early evening heat index values reaching 105 to 115 degrees. * WHERE...Portions of north central Kansas and central, east central, and south central Nebraska. * WHEN...Until 10 PM CDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat and high humidity events. * ADDITIONAL DETAILS...This will be the final day of extreme heat, with more typical levels of summer heat returning Tuesday.