We have been studying machine translation technology from Japanese to Japanese Sign Language (JSL) for weather news. In this paper we describe our developing weather news translation system, which synchronizes video, captions and JSL CG-animations. The CG-animations are translated from the Japanese sentences of the captions and their lengths are adjusted to suit to the caption ones The developed system has an human interface to change CG avatars and the display layout of videos, captions and CG avatars.