Indianapolis (WIBQ)-A heat advisory has been issued for today, as temperatures once again soar into the 90's. A heat advisory means that temperatures and humidity will create a situation where heat related illness is possible. Everyone is reminded to drink plenty of fluids, stay in an air conditioned room or building, and avoid outdoor activities during the hottest part of the day. Today's heat advisory runs from 2:00 pm this afternoon to 6:00 pm this evening.