User blog comment:Xilinoc/Ch. 585 - The Headless Star 4/@comment-24113610-20140618172556/@comment-5398287-20140618180515

Well, we briefly saw Ukitake in chapter 547. Apparently, he's at some sort of hot spring on the outskirts of Soul Society, in the forest, at the moment. Or at least, he was there yesterday. Probably healing up.