SW UMa entered a rapid fading phase During tonight observation, we found that SW UMa is about 0.8mag fainter than that observed in the last night, which fact indiates that SW UMa entered a rapid fading phase. The reduction of the data on March 1st and 2nd is not finished. The light curve untill Feb. 28 including the data observed at Kyoto, R. Novak and B. Martin, can be seen at the updated VSNET SW UMa page. Regards, Makoto Uemura on behalf of SW UMa collaboration team