 This morning, WTLB's Scott Gellman in Northern Virginia asking people if they know the difference between actual air temps and the heat index. Maybe like how much UV, like radiation, something like that. It's definitely not that. That's the heat with the humidity. That's much closer. And here at Tyson's Corner Center, a few shoppers actually did know what the index means and what it might be today. Man, I feel like it's 105.