...Dangerous Heat is expected across the Mid-South on Friday... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT THIS EVENING... ...HEAT ADVISORY IN EFFECT FROM 11 AM TO 8 PM CDT FRIDAY... The National Weather Service in Memphis has issued a Heat Advisory, which is in effect from 11 AM to 8 PM CDT Friday. * HEAT INDEX READINGS...105 to 109 degrees. * TIMING...Through 8 PM CDT tonight and then Friday afternoon until 8 PM Friday evening. * IMPACTS...the combination of hot temperatures and high humidity will likely lead to an increased risk of heat related stress and illness. The very young, the elderly, those without air conditioning, and those participating in strenuous outdoor activities will be the most susceptible. Also, car interiors can reach lethal temperatures in matter of minutes.