That was when the series was still branded by Winston, and that was back in the late 90's. The track was Suzuka(the short course) and they raced their in 1996/97, the following year they went to Motegi and ran the oval
They only had one year I believe, and that was the first trip where rain was an issue, and that was only for practice and qualifying, the race itself was ran under clear-ish skys, but you have to look at this way, NASCAR had no choice but to race in the rain is need be, this wasn't a race that could just postpone, race teams had to send the cars over two months ahead time I think, from a logistics standpoint, it was a all or nothing event .
http://youtu.be/KzVm4RZTNak