BIRMINGHAM, Ala. (AP) — Forecasters are warning of scorching heat across a wide stretch of the U.S. South and Midwest, where the heat index will feel as high as 117 degrees (47 Celsius) in some spots. Parts of 13 states on Monday will be under heat advisories, from Texas, Louisiana and Florida in the South to Missouri and Illinois in the Midwest, the National Weather Service reported. …