Heat Advisory issued July 21 at 3:27PM CDT until July 23 at 8:00PM CDT by NWS

...DANGEROUS HEAT AND HUMIDITY WILL CONTINUE ACROSS THE MID SOUTH THIS WEEKEND... ...HEAT ADVISORY REMAINS IN EFFECT UNTIL 8 PM CDT SUNDAY... * HEAT INDEX VALUES...105 to 109 degrees. * TIMING...Very hot and humid conditions will continue through early Sunday evening.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2uj8qJ2