The worst of the heat wave is yet come.  Tomorrow is going to be awful for anyone planning on spending an extended period of time outside. Even if you love the heat, make sure you're ready for what's on the docket. Take all precautions to stay safe! A heat advisory goes into effect on the 4th of July and covers all of Kentuckiana. With such a small chance at pop up cooling showers/storms tomorrow the dangerous heat will grab all headlines.  Heat indices will top 108 area wide.