...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM EDT THIS EVENING... * HEAT INDEX VALUES...Around 105 to 110 due to temperatures in the mid 90s, and dewpoints in the mid 70s. * TIMING...Through this evening. * IMPACTS...Heat stroke, heat exhaustion and other heat related illnesses will be possible, especially if you spend a significant amount of time outdoors, or are involved in any strenuous outdoor activity. The cumulative impacts of heat on the human body can be significant when consecutive days of excessive heat occur.