You hear us talk about the Heat Advisory online and on TV, but you may wonder exactly what it means. Obviously, it implies that it'll be hot and uncomfortable, but if you want to get more specific, according to our local National Weather Service office, a Heat Advisory is issued when the heat and humidity will combine to create heat index values (feels-like temps) of 105 to 109 degrees. According to my calculations, we'll come closer to those conditions Tuesday afternoon opposed to Monday.