Get ready with some water bottles: A sweltering heat wave hit the central and southern U.S. Monday, as excessive heat warnings were issued in 17 states. The National Weather Service issued heat advisories across the country—as far north as Connecticut as Illinois and as far south as Georgia and Oklahoma. Oklahoma has had 12 straight days of 100-degree temperatures, as one man said he was using survival skills he learned while working in Kuwait. Kansas City was also hit hard, as temperatures were expected to hit 110 degrees on Tuesday. A storm in Illinois knocked out power in the Chicago area, where temperatures had hit 91 degrees Monday.