With the end of the holiday season, Cumulus' newly minted "Warm 98.9" W255CJ/99.7 WWWQ-HD Atlanta has flipped to AC. The Warm playlist is featuring a broader mix than Cox Media's incumbent "B98.5" WSB-FM, while emphasizing softer artists such as Bee Gees, Cher, Michael Bolton and Norah Jones. W255CJ is utilizing Westwood One's AC network. Original