 The heat index, or so-called misery index, is a ratio of heat and humidity, which forecasters say may make it feel like 112 degrees today in southwest Iowa. National Weather Service meteorologist Andrew Ansorgi says severe weather is possible later today. The highest chances are going to be over portions of central Iowa into more so eastern Iowa this afternoon and evening. Still some uncertainty as we're watching some storms move down from Minnesota about where things are going to develop and what time.