 A sister city for Jackson. A 30% chance for afternoon storms today, but with a high at 97. A heat index at 106 and another heat advisory in effect. Tonight, a 30% chance for showers with a low at 77. A 50% chance for afternoon storms Wednesday with a high at 97. With news on 103.9 WYAB, I'm Chris Davis. A sister city agreement announced between Jackson and Rio Negro, Colombia in South America is partially about baseball.